農機丙級1-50題
Authored by 瑞呈洪 瑞呈洪
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1st - 5th Grade
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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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