National Electrical Exam – Sample
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Question 1 of 10
1. Question
_____ is the maximum approved electrical trade size for PVC conduit:
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Question 2 of 10
2. Question
______ circuit breakers or sets of fuses are acceptable as over current device to provide overload protection in one family dwellings:
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Question 3 of 10
3. Question
A 500 kva 240 volt single phase transformers impedance is 1%. What is the short circuit current?
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Question 4 of 10
4. Question
A branch circuit for an appliance that�s a continuous load must be rated not less than _____ of the marked ampere ratings of the appliance:
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Question 5 of 10
5. Question
A circuit breaker used as a switch shall be installed so the highest position of its operating handle is not more than ______ above the floor.
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Question 6 of 10
6. Question
A cord no longer than ____ with an attachment plug and containing a copper equipment grounding conductor not smaller than 12 AWG is permitted for pool motors:
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Question 7 of 10
7. Question
A flexible cord is permitted for an in-sink waste disposal if the cord length is no longer than _____:
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Question 8 of 10
8. Question
A luminaire (fixture) that weighs more than _______ lb or exceeds 400 mm (16 in.) in any dimension shall not be supported by the screw shell of a lampholder.
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Question 9 of 10
9. Question
A metal underground water pipe in direct contact with the earth for at least 10 feet has traditionally been a preferred grounding electrode. For all new construction, a metal underground water pipe is _______.
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Question 10 of 10
10. Question
A switch or circuit breaker enclosure may be used as a raceway if the conductor fill doesnot exceed _____ :
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