筆試補充練 2 - A
Authored by Charlene Cher
World Languages
10th Grade
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100 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
交流電，低壓是指導體與接地之間電壓不高於
200V
300V
600V
900V
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
新色碼三相四線的中性線顏色是
藍色
灰色
青色
黑色
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若電力工程施工前發生疑問，可向那一個機構查詢
工程局
地政署
電力公司
機電署
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
發電機、轉子需要安裝
危險牌
保護罩
停機制
滅火筒
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
使用電鑽，應做甚麼安全措施
安全帽
眼罩
手套
安全帶
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
三相之間的電壓是單相電壓的倍數是
√3
3
0.3
30
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
三相四線的系統，測試相序的儀錶是
相序錶
電流錶
電壓錶
減壓錶
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