The following indications are observed in the control room for a normally open breaker that directly starts/stops a 480 VAC motor:
Red position indicating light is on.
Green position indicating light is off.
Load current indicates 50 amps.
Supply voltage indicates 480 VAC.
What is the condition of the breaker?
A. Open and racked to TEST position
B. Closed and racked to TEST position
C. Open and racked in
D. Closed and racked in
Show Answer
Answer: D
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