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Commercial Locations NEC Quiz Questions
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Question 1 of 10
1. Question
1 pointsA minimum of _____ vertical clearance is required over commercial areas (not subjected to truck traffic) provided conductor voltage doesnot exceed 300V to ground
Correct
Please Refer: NEC Code 230.24(B)
Incorrect
Please Refer: NEC Code 230.24(B)
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Question 2 of 10
2. Question
1 pointsOther associated equipment located above or below electrical equipment, cannot extend more than ___ beyond the front of the electrical equipment
Correct
Please Refer: NEC Code 110.26(A)(3)
Incorrect
Please Refer: NEC Code 110.26(A)(3)
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Question 3 of 10
3. Question
1 pointsEquipment rated above 1200 amperes or more and over 6 ft wide containing overcurrent devices requires an entrance atleast ____ wide at each end of the working space:
Correct
Please Refer: NEC Code 110.26(C)
Incorrect
Please Refer: NEC Code 110.26(C)
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Question 4 of 10
4. Question
1 pointsWhere rear access is required to work on nonelectrical parts at the back of enclosed equipment, a minimum working space of ____ horizontally is required:
Correct
Please Refer: NEC Code 110.26(A)(1)(a)
Incorrect
Please Refer: NEC Code 110.26(A)(1)(a)
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Question 5 of 10
5. Question
1 pointsAtleast 2 entrances of sufficient area must be provided. giving access to the electrical equipment working space:
Correct
Please Refer: NEC Code 110.26(C)
Incorrect
Please Refer: NEC Code 110.26(C)
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Question 6 of 10
6. Question
1 pointsNot more than ___ of a power panel board overcurrent devices protect lighting and applicable branch circuits:
Correct
Please Refer: NEC Code 408.14(B)
Incorrect
Please Refer: NEC Code 408.14(B)
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Question 7 of 10
7. Question
1 pointsA maximum of ____ overcurrent devices (excluding those provided for in the mains) can be installed in any one cabinet/cutout box of a lighting and appliance branch circuit panelboards
Correct
Please Refer: NEC Code 408.15
Incorrect
Please Refer: NEC Code 408.15
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Question 8 of 10
8. Question
1 pointsIndividual protection for a lighting and appliance panelboard shall be required if the feeder has overcurrent protection not exceeding the panelboard ratings
Correct
Please Refer: NEC Code 408.16(A) Exp.1
Incorrect
Please Refer: NEC Code 408.16(A) Exp.1
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Question 9 of 10
9. Question
1 pointsThe conductor ampacity from the Generator terminals to the first distribution devices containing overcurrent device must not be less than ___ of the generator nameplate current rating:
Correct
Please Refer: NEC Code 455.13
Incorrect
Please Refer: NEC Code 455.13
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Question 10 of 10
10. Question
1 pointsUnbroken busway lengths shall not be extended through the dry walls:
Correct
Please Refer: NEC Code 368.6(A)
Incorrect
Please Refer: NEC Code 368.6(A)