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    Exam 4: Panelboards
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    The Voltage Ratings of the Breakers Must Be Higher Than
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The Voltage Ratings of the Breakers Must Be Higher Than

Question 11

Question 11

Multiple Choice

The voltage ratings of the breakers must be higher than that of the system. Breakers are usually rated at 250 or________ volts.


A) 300
B) 400
C) 500
D) 600

Correct Answer:

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