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農機丙級1-50題

Authored by 瑞呈洪 瑞呈洪

Other

1st - 5th Grade

Used 18+ times

農機丙級1-50題
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50 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

有一部四行程汽油引擎,其排氣量為 300c.c.,燃燒室容積為 50c.c.,則其壓縮比為

(1) 7:1

(2) 6:1

(3) 5:1

(4) 8:1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列有關汽門機構的說明,那一項是錯的?

(1) 汽門與汽門座之接觸面越寬則汽門之散熱越好

(2) 排氣行程上死點前,進氣門開

(3) 凸輪磨損時,汽門間隙變小

(4) 調整汽門間隙,活塞應在壓縮上死點

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

引擎風扇皮帶過鬆可能引起

(1) 燃燒不完全

(2) 點火太遲

(3) 引擎過熱

(4) 點火太早

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

單缸引擎如長時間停用時,應把活塞置於

(1) 壓縮上死點

(2) 動力下死點

(3) 排氣下死點

(4) 進氣上死點

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

引擎連桿的小端部相連結之機件為

(1) 曲軸

(2) 凸輪軸

(3) 活塞銷

(4) 活塞

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

最理想的引擎用冷卻水是

(1) 蒸餾水

(2) 井水

(3) 泉水

(4) 河水

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

柴油引擎之噴油泵內有空氣時

(1) 能發動且運轉正常

(2) 發動後冒黑煙

(3) 不能停車

(4) 不能發動

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