To relieve the race condition that might be encountered between the opening of a stacked PB switch and a large motor-starter contactor, a jog function can be generated by the __________ control of a relay, which through NO contacts offers __________ control of the motor-starter solenoid coil.
A) 3-wire; 2-wire
B) 2-wire; 3-wire
C) 2-wire; 2-wire
D) 3-wire; 3-wire
Show Answer
Answer:A
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