The standard single-phase AC service is normally rated 120/240-volt, 3-wire. All the ___ volt lighting, receptacle, or control-circuit branch circuits are connected between one of the two ungrounded busses and the common grounded neutral bus

Electrical Engineering MCQ
1

The standard single-phase AC service is normally rated 120/240-volt, 3-wire.

All the _________ -volt lighting, receptacle, or control-circuit branch circuits are connected between one of the two ungrounded busses and the common grounded neutral bus.

A) either 240 or 120
B) none of the answers
C) 120
D) 240

Show Answer

Answer:C

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