Master practice test

Master · Question 1 of 2530:00

Overcurrent Protection

Which circuit breaker needs an arc energy reduction method under 240.87?

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A breaker whose trip can be adjusted up to 1200 A, now set at 900 AAn 800 A breaker whose trip can be set no higher than 800 AA 1000 A breaker with a fixed 1000 A tripA 1000 A breaker on a 208Y/120 V service

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Every question is original and written to Each state's electrical licensing board; exams delivered by PSI, Prov and other vendors's published content outline, and every explanation cites the code section or source it relies on.