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NEC Code Practice Tests Quiz Questions Answers 17
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Question 1 of 15
1. Question
1 pointsA disconnect is required for all the conductors that enter a building:
Correct
Please Refer: NEC Code 225.31
Incorrect
Please Refer: NEC Code 225.31
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Question 2 of 15
2. Question
1 pointsThe _____ clearance of overhead conductors from the roof edge does not apply when the point of attachment is on the side of the building below the roof:
Correct
Please Refer: NEC Code 225.19(A)(Exp-4)
Incorrect
Please Refer: NEC Code 225.19(A)(Exp-4)
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Question 3 of 15
3. Question
1 pointsIMC must generally be supported at intervals not exceeding _____:
Correct
Please Refer: NEC Code 342.30(B)(1)
Incorrect
Please Refer: NEC Code 342.30(B)(1)
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Question 4 of 15
4. Question
1 pointsThe point of connection between serving utility and the premises wiring:
Correct
Please Refer: NEC Code 100
Incorrect
Please Refer: NEC Code 100
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Question 5 of 15
5. Question
1 pointsA standard fuse will clear the fault in ________:
Correct
Please Refer: NEC Code 240.2
Incorrect
Please Refer: NEC Code 240.2
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Question 6 of 15
6. Question
1 pointsThe overcurrent protection for 10 AWG copper conductor must not exceed ______:
Correct
Please Refer: NEC Code 240.4(D)(7)
Incorrect
Please Refer: NEC Code 240.4(D)(7)
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Question 7 of 15
7. Question
1 pointsThe total contact resistance is ______ if measured 5ft from the distance from rod:
Correct
Incorrect
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Question 8 of 15
8. Question
1 pointsThe portion of the grounding electrode conductor that is the sole connection to one or more concrete encased electrodes is not required to be larger than _____:
Correct
Please Refer: NEC Code 250.66(B)
Incorrect
Please Refer: NEC Code 250.66(B)
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Question 9 of 15
9. Question
1 pointsGrounding electrode for premises wiring systems must be located no closer than ______ from lightning protection system grounding electrodes:
Correct
Please Refer: NEC Code 250.53(B)
Incorrect
Please Refer: NEC Code 250.53(B)
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Question 10 of 15
10. Question
1 pointsThe Type 3 SPD connection must be a minimum ______ of conductor distance from the service or separately derived system disconnect:
Correct
Please Refer: NEC Code 285.25
Incorrect
Please Refer: NEC Code 285.25
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Question 11 of 15
11. Question
1 pointsFMC must be securely fastened within 1 ft of termination and secured and supported at intervals not exceeding ______:
Correct
Please Refer: NEC Code 348.30(A)
Incorrect
Please Refer: NEC Code 348.30(A)
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Question 12 of 15
12. Question
1 pointsType MC cable can be unsupported for upto _____ past the last point where it is securely fastened to minimize vibration or provide flexibility:
Correct
Please Refer: NEC Code 330.30(D)(3)
Incorrect
Please Refer: NEC Code 330.30(D)(3)
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Question 13 of 15
13. Question
1 pointsFLC for a single phase AC motor rated 10 hp supplied by 208V is _____ :
Correct
Please Refer: NEC Code Table 430.248
Incorrect
Please Refer: NEC Code Table 430.248
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Question 14 of 15
14. Question
1 pointsThe short circuit and ground fault protective device must not be less than _____ of the motor compressor current rating:
Correct
Please Refer: NEC Code 440.22(A)
Incorrect
Please Refer: NEC Code 440.22(A)
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Question 15 of 15
15. Question
1 pointsDry-type transformers rated not more than _____ are permitted above suspended ceilings or in hollow spaces of buildings, if not permanently closed by the structure:
Correct
Please Refer: NEC Code 450.13(B)
Incorrect
Please Refer: NEC Code 450.13(B)