
筆試補充練習3 (OK)
Authored by Charlene Cher
World Languages
10th Grade
Used 1+ times

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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
一
二
三
四
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