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【多选题】
采用接地故障保护时，在建筑物内应将( )作总等电位联结。A.
PE、PEN干线
B.
电气装置接地极的接地干线
C.
建筑物内的水管、煤气管、采暖和空调管道等金属管道
D.
条件许可的建筑物金属构件等、导电体等、电位联结中金属管道连接处应可靠地连通导电
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皮皮学刷刷变学霸
举一反三
【单选题】A wire feeder feeds the wire_____.
A.
automatically and continuously
B.
manually and continuously
C.
manually
D.
temporarily
【简答题】So the welding gun is connected to the wire feeder, and the wire feeder to the welding machine.
【简答题】影响个体成功的人格特征有哪些?它们的作用机制是什么?
【简答题】Where is the wire feeder in a welding circuit?
【简答题】Does a wire feeder feed the wire automatically and continuously?
【单选题】The wire ____ automatically and continuously by a wire feeder.
A.
feeds
B.
is fed
C.
C
D.
D
【简答题】Is wire feeder a piece of welding equipment?
【单选题】A wire feeder is between _____ and _____.
A.
the welding machine, the welding gun
B.
the welding gun , the workpiece
C.
C
D.
D
【判断题】The wire held in the gun is fed automatically and continuously by a wire feeder.
A.
正确
B.
错误
相关题目：
【简答题】So the welding gun is connected to the wire feeder, and the wire feeder to the welding machine.