NEC questions

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twinbeams

Member
Location
Oregon
I need some help in finding the answers to some questions I recently had on a quiz and I cannot find them in the code book, or anyone that is sure of the answers. If you could help and also tell me where I can find the answers in the book I would appreciate it.

1. Which of the following locations does not permit the required lighting to be connected to the load side of a ground fault circuit interrupter receptacle>
a. Transformer vault, b. Lube-oil change pit, c. stairwell, or d. Hoist way pit.

2. Which of the following electrical products is exempt from the electrical product certification requirements?
a. 800 amp meter control center in a manufacturing plan, b. Commercial electrical air conditioner, c. Hospital x ray machine used on patients, or d. all of the above.

3. Tap conductors used in a theater shall be:
a. Bundled, b. solid wire, c. watertight, or d. in unbroken lengths

4. Ungrounded direct current circuits of a IES system shall:
a. be permitted, b. not be permitted, c. be required, or d. no required

Would appreciate any help anyone can give me as I will be taking another exam again and want to make sure if these are ask again I know for sure I am correct.
 

bennie

Esteemed Member
Re: NEC questions

No.1 620.85, Stairway chair lifts, pits in hoistways.

No.2 X-ray, 517.64 and 76.

I'll get back to you on the others.
 

curt swartz

Electrical Contractor - San Jose, CA
Location
San Jose, CA
Occupation
Electrical Contractor
Re: NEC questions

1. 620.24(A)

2. Not sure

3. 520.53(H)(3)&(4)

4. 685.12

Bennie, How did you get your answer to #2? You may be correct but I'm not seeing it and don't have a better answer.
 

bennie

Esteemed Member
Re: NEC questions

Curt: I am going by the method of approval for
X-ray equipment. It appears to not be elgible for an NRTL approval. 517.64 V X-ray Installations.
Check it out. I'm not sure.
 
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