When a relay-logic Wired-NAND gate that utilizes three relays is employed in a motor control circuit,
The relay-logic output, taken on the load side of the NC inverting-relay contacts in another control line or rung, is zero volts only when all of the series-connected NO relay contacts in the wired-AND gate that control the third inverting-relay solenoid coil are ______________.
A) at-rest
B) activated
C) neither activated nor at-rest
D) either activated or at-rest
Show Answer
Answer:B
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