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乙級題目1-80

Authored by 瑞呈洪 瑞呈洪

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KG - 5th Grade

Used 6+ times

乙級題目1-80
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79 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

為使單缸柴油引擎在天氣寒冷時易於起動,下列哪一項措施是正確的?

(1) 延遲噴油時間

(2) 加少量機油到汽缸裏

(3) 降低噴油壓力

(4) 提早噴油時間

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

農用引擎空氣濾清器失去過濾功效時,最易磨損之機件為

(1) 主軸承

(2) 活塞環與汽缸

(3) 曲軸銷軸承

(4) 汽門與汽門座

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

農用柴油引擎噴油霧化不良,其可能原因為

(1) 噴油壓力太高

(2) 噴油時間過早

(3) 噴油嘴磨損

(4) 噴射泵凸輪磨損

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

柴油引擎冒黑煙,其可能原因為

(1) 排氣管中滯留機油

(2) 引擎過熱

(3) 引擎超負荷

(4) 燃料系統阻塞

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

汽油引擎排出淡藍煙,其可能原因為

(1) 引擎過熱

(2) 點火過早

(3) 進入燃燒室之機油過量

(4) 空氣濾清器阻塞

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

未發動之汽油引擎化油器溢流管有汽油流出,其可能原因為

(1) 浮筒針閥密合不良

(2) 油門未關

(3) 主噴油嘴阻塞

(4) 阻風門關閉

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

使曲軸轉動之力為

(1) 重力

(2) 扭力

(3) 向心力

(4) 離心力

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