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		<h1>Đề cương ôn tập thi cuối kỳ 2 môn Công Nghệ khối 11</h1>
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			<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Ôn tập Cuối kì 2</b><b> – CN lớp 11</b></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>I. Trắc nghiệm</b></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 1:</b>&nbsp; Nhiên liệu điêzen được phun vào xilanh ở thời điểm</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>cuối kì nén.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>đầu kì nén.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>đầu kì nạp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>cuối kì nạp.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 2:</b>&nbsp; Hệ thống truyền lực trên ôtô, không có bộ phận</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>li hợp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>truyền lực cuối cùng.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>truyền lực các đăng.&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>truyền lực chính và bộ vi sai.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 3:</b>&nbsp; Khi muốn tắt động cơ thì</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>đóng công tắc (4).&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>ngắt công tắc (4).</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>tháo rời bugi (3).&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>cho roto của ma-nhê-tô ngừng quay.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 4:</b>&nbsp; Trong cấu tạo của hệ thống đánh lửa điện tử không tiếp điểm có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b><b>h</b>ai tụ điện; hai điôt.&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>hai tụ điện; ba điôt.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>một tụ điện; ba điôt.&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>ba tụ điện; một điôt.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 5:</b>&nbsp; Trên một ôtô có hộp số 5 cấp vận tốc, gồm</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>6 số tiến và 1 số lùi.&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>4 số tiến và 1 số lùi.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>5 số tiến và không có số lùi.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>5 số tiến và 1 số lùi.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 6:</b>&nbsp; Không khí ở động cơ điêzen được nạp vào xilanh trong quá trình</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>nén.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>nạp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>thải.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>cháy-dãn nở.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 7:</b>&nbsp; Chi tiết không có trong cấu tạo của hệ thống khởi động là</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>thanh kéo.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>bánh đà.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>khớp trượt.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>lòxo.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 8:</b>&nbsp; Hệ thống cung cấp nhiên liệu và không khí động cơ điêzen có nhiệm vụ</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b><span style="font-family:VNI-Times">cung caáp nhieân lieäu vaø khoâng khí</span> vào xi lanh.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b><span style="font-family:VNI-Times">cung caáp ø khoâng khí</span> vào xi lanh.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b><span style="font-family:VNI-Times">cung caáp nhieân lieäu vaø khoâng khí</span> sạch vào xi lanh.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b><span style="font-family:VNI-Times">cung caáp nhieân lieäu </span>vào xi lanh.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 9:</b>&nbsp; Sơ đồ khối hệ thống truyền lực trên xe máy:</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>Động cơ <span style="font-family:Wingdings">à</span> Li hợp <span style="font-family:Wingdings">à</span> Xích hoặc các đăng <span style="font-family:Wingdings">à</span> Hộp số <span style="font-family:Wingdings">à</span> Bánh xe.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>Động cơ <span style="font-family:Wingdings">à</span> Li hợp <span style="font-family:Wingdings">à</span> Hộp số <span style="font-family:Wingdings">à</span> Xích hoặc các đăng <span style="font-family:Wingdings">à</span> Bánh xe.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>Động cơ <span style="font-family:Wingdings">à</span> Xích hoặc các đăng <span style="font-family:Wingdings">à</span> Li hợp <span style="font-family:Wingdings">à</span> Hộp số <span style="font-family:Wingdings">à</span> Bánh xe.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>Động cơ <span style="font-family:Wingdings">à</span> Hộp số <span style="font-family:Wingdings">à</span> Li hợp <span style="font-family:Wingdings">à</span> Xích hoặc các đăng <span style="font-family:Wingdings">à</span> Bánh xe.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 10:</b>&nbsp; Nguyên tắc ứng dụng động cơ đốt trong về công suất thì hệ số dự trữ K có giá trị trong khoảng</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>Từ 10,5 đến 15. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>Từ 1,5 đến 15. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>Từ 1,05 đến 1,5. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>Từ 0,5 đến 1,5.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 11:</b>&nbsp; Phân loại hệ thống khởi động có</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>6 loại.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>3 loại.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>4 loại.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>2 loại.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 12:</b>&nbsp; Trong hệ thống khởi động bằng động cơ điện, khi khởi động thì chi tiết tác động trực tiếp để nén lò xo (2) là</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>thanh kéo (4).&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>khớp truyền động (6).&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>lõi thép (3).&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>cần gạt (5).</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 13:</b>&nbsp; Động cơ đốt trong trên xe máy có các đặc điểm</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>là động cơ xăng 2 kì và 4 kì cao tốc, có công suất nhỏ, số lượng xi lanh nhiều.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>là động cơ xăng 2 kì và 4 kì cao tốc, có công suất trung bình, số lượng xi lanh ít.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>là động cơ xăng 2 kì và 4 kì cao tốc, có công suất nhỏ, số lượng xi lanh ít.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>là động cơ xăng 2 kì và 4 kì cao tốc, có công suất trung bình, số lượng xi lanh nhiều.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 14:</b>&nbsp; Trong sơ đồ khối hệ thống nhiên liệu động cơ điêzen có</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>4 bầu lọc.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>1 bầu lọc.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>2 bầu lọc.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>3 bầu lọc.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 15:</b>&nbsp; Hòa khí trong động cơ điêzen được hình thành ở thời điểm</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>đầu kì nạp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>cuối kì nạp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>cuối kì nén.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>đầu kì nén.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 16:</b>&nbsp; Chi tiết có trong cấu tạo của truyền lực chính là</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>bánh răng côn.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>khớp truyền động.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>đĩa ma sát .&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>khớp trượt.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 17:</b>&nbsp; Khi bố trí động cơ đốt trong ở đuôi ôtô, không có nhược điểm sau</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>hệ thống điều khiển động cơ.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>sửa chửa bảo dưởng động cơ.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>nhiệt và tiếng ồn động cơ.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>làm mát động cơ.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 18:</b>&nbsp; Trong mạch điện của hệ thống đánh lửa điện tử không tiếp điểm, dòng điện do tụ C<sub>T</sub> phóng điện chạy qua</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>cuộn thứ cấp w<sub>2</sub>.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>cuộn điều khiển w<sub>ĐK</sub>.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>cuộn sơ cấp w<sub>1</sub>.&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>cuộn nguồn w<sub>N</sub>.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 19:</b>&nbsp; Trong sơ đồ khối hệ thống truyền lực trên ôtô, cấu tạo của hệ thống truyền lực có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>6 khối.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>3 khối.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>5 khối.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>4 khối.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 20:</b>&nbsp; “Bơm cao áp” là chi tiết thuộc hệ thống</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>khởi động.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>nhiên liệu.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>làm mát.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>đánh lửa.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 21:</b>&nbsp; Truyền lực cuối cùng có trên</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>máy nông nghiệp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>ôtô.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>ôtô, máy nông nghiệp. <b>D.&nbsp; </b>xe máy.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 22:</b>&nbsp; Sơ đồ hệ thống truyền lực trên ôtô:</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>Động cơ<span style="font-family:Wingdings">à</span>Li hợp<span style="font-family:Wingdings">à</span>Hộp số<span style="font-family:Wingdings">à</span>Truyền lực chính và vi sai<span style="font-family:Wingdings">à</span>Truyền lực các đăng <span style="font-family:Wingdings">à</span> Cầu chủ động.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>Động cơ<span style="font-family:Wingdings">à</span>Truyền lực các đăng<span style="font-family:Wingdings">à</span>Truyền lực chính và vi sai<span style="font-family:Wingdings">à</span>Li hợp<span style="font-family:Wingdings">à</span>Hộp số<span style="font-family:Wingdings">à</span>Cầu chủ động.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>Động cơ<span style="font-family:Wingdings">à</span>Li hợp<span style="font-family:Wingdings">à</span> Hộp số<span style="font-family:Wingdings">à</span>Truyền lực các đăng<span style="font-family:Wingdings">à</span>Truyền lực chính và vi sai<span style="font-family:Wingdings">à</span>Cầu chủ động.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>Động cơ<span style="font-family:Wingdings">à</span>Hộp số<span style="font-family:Wingdings">à</span>Li hợp<span style="font-family:Wingdings">à</span>Truyền lực các đăng<span style="font-family:Wingdings">à</span> Truyền lực chính và vi sai<span style="font-family:Wingdings">à</span>Cầu chủ động.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 23:</b>&nbsp; Trong hệ thống đánh lửa điện tử không tiếp điểm thì mạch điện để nạp điện cho tụ C<sub>T</sub> là</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>W<sub>N</sub> <span lang="PT-BR" style="font-family:Wingdings">à</span> Đ<sub>2</sub> <span lang="PT-BR" style="font-family:Wingdings">à</span>(4) <span lang="PT-BR" style="font-family:Wingdings">à</span> “Mát” <span lang="PT-BR" style="font-family:Wingdings">à</span> W<sub>N</sub>. <b>B.&nbsp; </b>W<sub>N</sub> <span lang="NL" style="font-family:Wingdings">à</span> Đ<sub>1</sub> <span lang="NL" style="font-family:Wingdings">à</span> Cực (+) C<sub>T</sub> <span lang="NL" style="font-family:Wingdings">à</span> Cực (-) C<sub>T</sub> <span lang="NL" style="font-family:Wingdings">à</span> W<sub>1</sub> <span lang="NL" style="font-family:Wingdings">à</span> “Mát” <span lang="NL" style="font-family:Wingdings">à</span> W<sub>N</sub>.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>W<sub>2</sub> <span lang="PT-BR" style="font-family:Wingdings">à</span> (3) <span lang="PT-BR" style="font-family:Wingdings">à</span> “Mát” <span lang="PT-BR" style="font-family:Wingdings">à</span> W­<sub>2</sub>.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>Cực (+) C<sub>T</sub> <span lang="NL" style="font-family:Wingdings">à</span> Đ<sub>ĐK</sub> <span lang="NL" style="font-family:Wingdings">à</span> “Mát” <span lang="NL" style="font-family:Wingdings">à</span> W<sub>1</sub> <span lang="NL" style="font-family:Wingdings">à</span> Cực (-) C<sub>T</sub>.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 24:</b>&nbsp; Lượng nhiên liệu điêzen phun vào xilanh được điều chỉnh phù hợp là nhờ</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>vòi phun.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>bơm chuyển nhiên liệu.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b><span lang="PT-BR" style="font-family:&#039;Arial&#039;,sans-serif">b</span>ơm cao áp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>thùng nhiên liệu.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 25:</b>&nbsp; Khi bố trí động cơ đốt trong ở đầu ôtô trước buồng lái, không có ưu điểm sau</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>tầm quan sát mặt đường.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>sửa chửa bảo dưởng động cơ.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>làm mát động cơ.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>hệ thống điều khiển động cơ.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 26:</b>&nbsp; Đặc điểm của động cơ đốt trong trên ôtô</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>có tốc độ quay cao; trọng lượng và kích thước nhỏ gọn; làm mát bằng nước.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>có tốc độ quay trung bình hoặc cao; trọng lượng và kích thước nhỏ gọn; làm mát bằng nước.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>có tốc độ quay cao; trọng lượng và kích thước nhỏ gọn; làm mát bằng không khí.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>có tốc độ quay trung bình; trọng lượng và kích thước nhỏ gọn; làm mát bằng nước.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 27:</b>&nbsp; Trong hệ thống đánh lửa điện tử không tiếp điểm thì mạch điện đánh lửa cho bugi (3) là</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>Cực (+) C<sub>T</sub> <span lang="NL" style="font-family:Wingdings">à</span> Đ<sub>ĐK</sub> <span lang="NL" style="font-family:Wingdings">à</span> “Mát” <span lang="NL" style="font-family:Wingdings">à</span> W<sub>1</sub> <span lang="NL" style="font-family:Wingdings">à</span> Cực (-) C<sub>T</sub>.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>W<sub>N</sub> <span lang="NL" style="font-family:Wingdings">à</span> Đ<sub>1</sub> <span lang="NL" style="font-family:Wingdings">à</span> Cực (+) C<sub>T</sub> <span lang="NL" style="font-family:Wingdings">à</span> Cực (-) C<sub>T</sub> <span lang="NL" style="font-family:Wingdings">à</span> W<sub>1</sub> <span lang="NL" style="font-family:Wingdings">à</span> “Mát” <span lang="NL" style="font-family:Wingdings">à</span> W<sub>N</sub>.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>W<sub>2</sub> <span lang="PT-BR" style="font-family:Wingdings">à</span> (3) <span lang="PT-BR" style="font-family:Wingdings">à</span> “Mát” <span lang="PT-BR" style="font-family:Wingdings">à</span> W­<sub>2</sub>.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>W<sub>ĐK</sub> <span lang="PT-BR" style="font-family:Wingdings">à</span> Đ<sub>2</sub> <span lang="PT-BR" style="font-family:Wingdings">à</span>(4) <span lang="PT-BR" style="font-family:Wingdings">à</span> “Mát” <span lang="PT-BR" style="font-family:Wingdings">à</span> W<sub>ĐK</sub>.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 28:</b>&nbsp; Trong mạch điện của hệ thống đánh lửa điện tử không tiếp điểm, cuộn điều khiển w<sub>ĐK</sub> dùng để điều khiển</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>dòng điện đánh lửa cho buzi.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>dòng điện do tụ C<sub>T</sub> phóng điện.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>dòng điện để nạp điện cho tụ C<sub>T</sub>.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>dòng điện chạy ra mát khi tắt máy.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 29:</b>&nbsp; Động cơ đốt trong trên ôtô có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>3 đặc điểm.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>5 đặc điểm.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>4 đặc điểm.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>2 đặc điểm.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 30:</b>&nbsp; Sơ đồ khối ứng dụng động cơ đốt trong là</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>Động cơ đốt trong <span style="font-family:Wingdings">à</span>Hệ thống truyền lực <span style="font-family:Wingdings">à</span> Máy công tác.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>Hệ thống truyền lực <span style="font-family:Wingdings">à</span> Động cơ đốt trong <span style="font-family:Wingdings">à</span> Máy công tác.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>Hệ thống truyền lực <span style="font-family:Wingdings">à</span>Máy công tác<span style="font-family:Wingdings">à</span> Động cơ đốt trong.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>Máy công tác <span style="font-family:Wingdings">à</span> Hệ thống truyền lực <span style="font-family:Wingdings">à</span> Động cơ đốt trong.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 31:</b>&nbsp; Dãy sắp xếp hệ thống tuyền lực trên ôtô đúng là</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>Hộp số&nbsp; <span style="font-family:Wingdings">à</span> li hợp <span style="font-family:Wingdings">à</span> truyền lực chính và bộ vi sai <span style="font-family:Wingdings">à</span> truyền lực các đăng.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>Li hợp <span style="font-family:Wingdings">à</span> hộp số <span style="font-family:Wingdings">à</span> truyền lực các đăng <span style="font-family:Wingdings">à</span> truyền lực chính và bộ vi sai.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>Li hợp <span style="font-family:Wingdings">à</span> hộp số <span style="font-family:Wingdings">à</span> truyền lực chính và bộ vi sai <span style="font-family:Wingdings">à</span> truyền lực các đăng.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>Hộp số&nbsp; <span style="font-family:Wingdings">à</span> li hợp <span style="font-family:Wingdings">à</span> truyền lực các đăng <span style="font-family:Wingdings">à</span> truyền lực chính và bộ vi sai.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 32:</b>&nbsp; Trên xe máy, khi bố trí động cơ đốt trong ở giữa xe có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>ưu điểm: phân bố khối lượng và nhiệt thải; nhược điểm: hệ thống truyền lực và làm mát.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>ưu điểm: hệ thống truyền lực và làm mát; nhược điểm: phân bố khối lượng và nhiệt thải.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>ưu điểm: hệ thống truyền lực và nhiệt thải; nhược điểm: phân bố khối lượng và làm mát.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>ưu điểm: phân bố khối lượng và làm mát; nhược điểm: hệ thống truyền lực và nhiệt thải.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 33:</b>&nbsp; Trong sơ đồ khối hệ thống nhiên liệu động cơ điêzen chỉ có</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>bơm chuyển nhiên liệu và <span lang="PT-BR" style="font-family:&#039;Arial&#039;,sans-serif">b</span>ơm cao áp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<b>B.&nbsp; </b><span lang="PT-BR" style="font-family:&#039;Arial&#039;,sans-serif">b</span>ơm cao áp và bơm không khí.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b><span lang="PT-BR" style="font-family:&#039;Arial&#039;,sans-serif">b</span>ơm cao áp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>bơm chuyển nhiên liệu.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 34:</b>&nbsp; Truyền lực chính và bộ vi sai, trên ôtô, có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>2 bánh răng côn.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>6 bánh răng côn.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>5 bánh răng côn.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>4 bánh răng côn.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 35:</b>&nbsp; Khi chọn công suất của động cơ phải thỏa mãn quan hệ sau</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>N­<sub>CT</sub> = (N<sub>ĐC</sub> + N<sub>TT</sub>).K.&nbsp; <b>B.&nbsp; </b>N<sub>ĐC</sub> = (N­<sub>CT</sub> - N<sub>TT</sub>).K.&nbsp;&nbsp; <b>C.&nbsp; </b>N<sub>ĐC</sub> = (N­<sub>CT</sub> + N<sub>TT</sub>).K.&nbsp; <b>D.&nbsp; </b>N­<sub>CT</sub> = (N<sub>ĐC</sub> - N<sub>TT</sub>).K.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 36:</b>&nbsp; Trong hệ thống truyền lực trên ôtô, chi tiết “đĩa ma sát” thuộc bộ phận</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>Truyền lực các đăng.&nbsp;&nbsp; <b>B.&nbsp; </b>Truyền lực chính và bộ vi sai.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>Hộp số.&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>Li hợp.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 37:</b>&nbsp; Nhiệm vụ hệ thống đánh lửa là tạo ra tia lửa điện</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>có áp suất cao để châm cháy hòa khí trong động cơ điêzen.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>có điện áp cao để châm cháy hòa khí trong động cơ điêzen.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>có điện áp cao để châm cháy hòa khí trong động cơ xăng.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>có áp suất cao để châm cháy hòa khí trong động cơ xăng.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 38:</b>&nbsp; “Khớp truyền động” là chi tiết thuộc hệ thống</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>đánh lửa.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>nhiên liệu.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>khởi động.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>làm mát.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 39:</b>&nbsp; Trên máy nông nghiệp có hai cầu chủ động thì việc phân phối mômen có thể từ</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>động cơ.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>li hợp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>bộ vi sai.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>hộp số.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 40:</b>&nbsp; Phân loại hệ thống truyền lực, trên ôtô, theo số cầu chủ động có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A. &nbsp;</b>hai cầu chủ động; ba cầu chủ động.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>một cầu chủ động; nhiều cầu chủ động.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>một cầu chủ động; hai cầu chủ động; ba cầu chủ động.&nbsp;&nbsp; <b>D.&nbsp; </b>một cầu chủ động; hai cầu chủ động.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 41:</b>&nbsp; Trong hệ thống khởi động, chi tiết tác động trực tiếp lên công tắc cấp điện cho động cơ điện là</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>cần gạt.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>lòxo.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>lõi thép.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>thanh kéo.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 42:</b>&nbsp; Trên một xe máy có hộp số 4 cấp tốc độ, gồm</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>3 số tiến và không có số lùi.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>4 số tiến và không có số lùi.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>4 số tiến và 1 số lùi.&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>3 số tiến và 1 số lùi.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 43:</b>&nbsp; Trong hệ thống đánh lửa điện tử không tiếp điểm thì mạch điện phóng điện của tụ C<sub>T</sub> là</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>W<sub>ĐK</sub> <span lang="PT-BR" style="font-family:Wingdings">à</span> Đ<sub>2</sub> <span lang="PT-BR" style="font-family:Wingdings">à</span>(4) <span lang="PT-BR" style="font-family:Wingdings">à</span> “Mát” <span lang="PT-BR" style="font-family:Wingdings">à</span> W<sub>ĐK</sub>.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>W<sub>2</sub> <span lang="PT-BR" style="font-family:Wingdings">à</span> (3) <span lang="PT-BR" style="font-family:Wingdings">à</span> “Mát” <span lang="PT-BR" style="font-family:Wingdings">à</span> W­<sub>2</sub>.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>W<sub>N</sub> <span lang="NL" style="font-family:Wingdings">à</span> Đ<sub>1</sub> <span lang="NL" style="font-family:Wingdings">à</span> Cực (+) C<sub>T</sub> <span lang="NL" style="font-family:Wingdings">à</span> Cực (-) C<sub>T</sub> <span lang="NL" style="font-family:Wingdings">à</span> W<sub>1</sub> <span lang="NL" style="font-family:Wingdings">à</span> “Mát” <span lang="NL" style="font-family:Wingdings">à</span> W<sub>N</sub>.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>Cực (+) C<sub>T</sub> <span lang="NL" style="font-family:Wingdings">à</span> Đ<sub>ĐK</sub> <span lang="NL" style="font-family:Wingdings">à</span> “Mát” <span lang="NL" style="font-family:Wingdings">à</span> W<sub>1</sub> <span lang="NL" style="font-family:Wingdings">à</span> Cực (-) C<sub>T</sub>.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 44:</b>&nbsp; Trong sơ đồ khối hệ thống nhiên liệu động cơ điêzen có</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>8 khối.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>10 khối.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>6 khối.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>4 khối.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 45:</b>&nbsp; Có mấy nguyên tắc ứng dụng động cơ đốt trong?</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>3.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>2.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>4.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>1.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 46:</b>&nbsp; Hộp số trên xe máy có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>ba, bốn cấp tốc độ.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>năm, sáu cấp tốc độ.&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>bốn, năm cấp tốc độ.&nbsp;&nbsp; <b>D.&nbsp; </b>ba, bốn, năm cấp tốc độ.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 47:</b>&nbsp; Trong sơ đồ cấu tạo các bộ phận chính của hệ thống khởi động bằng động cơ điện có</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>12 chi tiết.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>9 chi tiết.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>8 chi tiết.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>10 chi tiết.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 48:</b>&nbsp; Bộ vi sai, trên ôtô, có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>5 bánh răng côn.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>2 bánh răng côn.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>6 bánh răng côn.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>4 bánh răng côn.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 49:</b>&nbsp; Khi vòi phun nhiên liệu điêzen vào xi lanh thì thời điểm bắt đầu và kết thúc quá trình phun do</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>lượng không khí quyết định.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>lượng nhiên liệu quyết định.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>chất lượng nhiên liệu quyết định.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>áp suất nhiên liệu quyết định.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 50:</b>&nbsp; Trong cấu tạo của hệ thống đánh lửa điện tử không tiếp điểm có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>4 cuộn dây.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>1 cuộn dây.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>3 cuộn dây.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>2 cuộn dây.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 51:</b>&nbsp; Dùng phanh để làm nhiệm vụ lái có trên</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>máy kéo xích, máy kéo bánh hơi.&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>máy kéo bánh hơi.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>ôtô. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>máy kéo xích.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 52:</b>&nbsp; Các nguyên tắc ứng dụng động cơ đốt trong là</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>về tốc độ quay và về công suất.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>về tốc độ quay và về lực kéo.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>về tốc độ quay, về công suất và về lực kéo.&nbsp;&nbsp; <b>D.&nbsp; </b>về lực kéo và về công suất.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 53:</b>&nbsp; Khi bố trí động cơ đốt trong ở đầu ôtô trong buồng lái, có ưu điểm sau</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>tầm quan sát mặt đường.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>sửa chữa, bảo dưỡng động cơ.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>hệ thống truyền lực.&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>nhiệt thải và tiếng ồn.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 54:</b>&nbsp; Trong sơ đồ khối hệ thống truyền lực trên xe máy, cấu tạo của hệ thống truyền lực có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>6 khối.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>5 khối.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>4 khối.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>3 khối.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 55:</b>&nbsp; Truyền lực chính, trên ôtô, có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>5 bánh răng côn.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>6 bánh răng côn.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>4 bánh răng côn.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>2 bánh răng côn.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 56:</b>&nbsp; “Bugi” là chi tiết thuộc hệ thống</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>làm mát.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>đánh lửa.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>nhiên liệu.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>khởi động.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 57:</b>&nbsp; Bố trí động cơ đốt trong trên ôtô có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>4 cách.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>3 cách.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>1 cách.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>2 cách.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 58:</b>&nbsp; Khi bố trí động cơ đốt trong ở đuôi ôtô, có nhược điểm sau</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>nhiệt và tiếng ồn động cơ.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>hệ thống tuyền lực.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>tầm quan sát mặt đường.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>sửa chửa bảo dưởng động cơ.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 59:</b>&nbsp; Nguồn điện nạp điện cho tụ C<sub>T</sub> được lấy trực tiếp từ</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>cuộn điều khiển w<sub>ĐK</sub>.&nbsp;&nbsp; <b>B.&nbsp; </b>cuộn nguồn w<sub>N</sub>.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>cuộn thứ cấp w<sub>2</sub>.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>cuộn sơ cấp w<sub>1</sub>.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 60:</b>&nbsp; Động cơ đốt trong trên xe máy có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>4 đặc điểm.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>3 đặc điểm.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>2 đặc điểm.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>5 đặc điểm.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 61:</b>&nbsp; Nhiên liệu điêzen phun vào xilanh phải có áp suất</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>nhỏ hơn áp suất khí trong xilanh.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>cao hơn áp suất khí trong xilanh.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>bằng áp suất khí trong xilanh.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>cao hơn hoặc bằng áp suất khí trong xilanh.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 62:</b>&nbsp; Chi tiết không có trong cấu tạo của truyền lực các đăng là</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>khớp trượt.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>khớp các đăng.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>trục bị động của hộp số.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>khớp truyền động.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 63:</b>&nbsp; Chi tiết có trong cấu tạo của tuyền lực các đăng là</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>đĩa ma sát .&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>khớp truyền động.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>bánh răng côn.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>khớp trượt.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 64:</b>&nbsp; Máy cày là</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>máy kéo bánh hơi.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>máy kéo xích, máy kéo bánh hơi.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>ôtô.&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>máy kéo xích.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 65:</b>&nbsp; Pit-tông và xi lanh của <span lang="PT-BR" style="font-family:&#039;Arial&#039;,sans-serif">b</span>ơm cao áp được chế tạo với</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>độ chính xác rất thấp, khe hở giữa chúng rất nhỏ.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>độ chính xác rất cao, khe hở giữa chúng rất nhỏ.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>độ chính xác rất thấp, khe hở giữa chúng rất lớn.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>độ chính xác rất cao, khe hở giữa chúng rất lớn.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 66:</b>&nbsp; Nguồn điện cấp điện cao áp để đánh lửa cho bugi lấy trực tiếp từ</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>cuộn nguồn w<sub>N</sub>.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>cuộn điều khiển w<sub>ĐK</sub>.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>cuộn sơ cấp w<sub>1</sub>.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>cuộn thứ cấp w<sub>2</sub>.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 67:</b>&nbsp; Bố trí động cơ đốt trong trên xe máy có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>4 cách.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>3 cách.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>1 cách.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>2 cách.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 68:</b>&nbsp; Trên xe máy, khi bố trí động cơ đốt trong ở đuôi xe có</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>ưu điểm: hệ thống truyền lực và nhiệt thải; nhược điểm: phân bố khối lượng và làm mát.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>ưu điểm: phân bố khối lượng và làm mát. Nhược điiểm: hệ thống truyền lực và nhiệt thải.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>ưu điểm: phân bố khối lượng và nhiệt thải; nhược điểm: hệ thống truyền lực và làm mát.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>ưu điểm: hệ thống truyền lực và làm mát; nhược điểm: phân bố khối lượng và nhiệt thải.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 69:</b>&nbsp; Hệ thống khởi động có nhiệm vụ làm quay</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>trục khuỷu động cơ để động cơ nổ máy.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>trục roto động cơ điện để động cơ nổ máy.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="text-autospace:none"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>trục cam động cơ để động cơ nổ máy.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>cánh quạt để động cơ nổ máy.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 70:</b>&nbsp; Động cơ, li hợp, hộp số thường bố trí trong một vỏ chung trên</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>A.&nbsp; </b>ôtô.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>B.&nbsp; </b>xe máy, ôtô, máy nông nghiệp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>C.&nbsp; </b>máy nông nghiệp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>D.&nbsp; </b>xe máy.</span></span></span><br />
<br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>II. Tự luận</b></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 1:</b> Trình bày nhiệm vụ, cấu tạo và nguyên lí làm việc của<span lang="VI" style="font-family:&#039;Calibri&#039;,sans-serif"> h</span><span style="font-family:VNI-Times">eä thoáng cung caáp nhieân lieäu vaø khoâng khí trong ñoäng cô ñieâzen.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 2:</b> Trình bày nhiệm vụ, cấu tạo và nguyên lí làm việc của li hợp ma sát trên ôtô.</span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Câu 3: Trình bày nhiệm vụ, cấu tạo và nguyên lí làm việc của<span lang="VI" style="font-family:&#039;Calibri&#039;,sans-serif"> h</span><span style="font-family:VNI-Times">eä thoáng</span><span lang="VI" style="font-family:&#039;Calibri&#039;,sans-serif"> đánh lửa điện tử không tiếp điểm.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Câu 4: Trình bày nhiệm vụ, cấu tạo và nguyên lí làm việc của<span lang="VI" style="font-family:&#039;Calibri&#039;,sans-serif"> h</span><span style="font-family:VNI-Times">eä thoáng</span><span lang="VI" style="font-family:&#039;Calibri&#039;,sans-serif"> khởi động bằng động cơ điện.</span></span></span></span><br />
<span style="font-size:12pt"><span style="tab-stops:1.0cm 155.9pt 283.45pt 411.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Câu 5: Trình bày nhiệm vụ, cấu tạo và nguyên lí làm việc của li hợp ma sát thường đóng.</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Câu 6: Trình bày và giải thích ưu nhược điểm của cách bố trí động cơ ở đầu ô tô trước buồng lái.</span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Câu 7: Trình bày<b> </b>và giải thích ưu nhược điểm của cách bố trí động cơ ở đầu ô tô trong buồng lái. Cách khắc phục nhược điểm.</span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Câu 8: Trình bày và giải thích ưu nhược điểm của cách bố trí động cơ đốt trong trên xe máy: Ở giữa xe, ở đuôi xe.</span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">-------- Hết --------</span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Ðáp án :</span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. <span style="font-family:NH">C</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 8. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 9. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 10. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 11. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 12. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 13. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 14. <span style="font-family:NH">D</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 15. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 16. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 17. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 18. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 19. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 21. <span style="font-family:NH">A</span>&nbsp;&nbsp;</span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 22. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 23. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 24. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 25. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 26. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 27. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 28. <span style="font-family:NH">B</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 29. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 30. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 31. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 32. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 33. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 34. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 35. <span style="font-family:NH">C</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 36. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 37. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 38. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 39. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 40. <span style="font-family:NH">B</span>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 41. <span style="font-family:NH">C</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 42. <span style="font-family:NH">B</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 43. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 44. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 47. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 48. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 49. <span style="font-family:NH">D</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 50. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 51. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 52. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 53. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 54. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 55. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 56. <span style="font-family:NH">B</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 57. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 58. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 59. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 60. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 61. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 62. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 63. <span style="font-family:NH">D</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 64. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 65. <span style="font-family:NH">B</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 66. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 67. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 68. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 69. <span style="font-family:NH">A</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 70. <span style="font-family:NH">D</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span><br />
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