Question 3045 of 844 · Washington 01 Journey Level Electrician Exam
A 120/240 volt slash rated circuit breaker may be used on which system?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 3045
- C: A solidly grounded system where no conductor exceeds 120 volts to ground
Explanation
A slash rated breaker may be used only on a solidly grounded circuit where the voltage of any conductor to ground does not exceed the lower value and the voltage between conductors does not exceed the higher value. See 240.85.
More questions: Feeders and Overcurrent Protection
- 3046Where a premises has feeders supplied from more than one nominal voltage system, how must the ungrounded feeder conductors be identified?
- 3047Which value is an additional standard ampere rating for fuses only?
- 3048What does selective coordination of OCPDs achieve?
- 3050Which of the following is a standard ampere rating for fuses and inverse time circuit breakers?
- 3051A circuit breaker used to switch 120 volt fluorescent lighting on a regular basis must be marked with which designation?
- 3001Which location is prohibited for an OCPD in all three editions?