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筆試補充練習3 (OK)

Authored by Charlene Cher

World Languages

10th Grade

Used 1+ times

筆試補充練習3 (OK)
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85 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

一個200W燈泡,每天工作5小時,於四月(作30天計算)裡,每度電費為$1.00

$30.00

$120.00

$15.00

$90.00

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

緊急照明最小需維持______分鐘。

30

60

90

120

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

發電機的轉子,須加裝______以保安全

警告牌

急停掣

保護罩

上鎖

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

三相電動機在同一功率下,較單相電動機優勝於:

體積較細

可不用電容下,直接由綫組起動

可作功率較大

以上全對

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

漏電斷路器,漏電時切斷時間為

0.1s

0.4s

0.5s

0.5s

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

第四類電路為

低壓

高壓

緊急

電訊

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

緊急照明屬第____電路

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