April 2001

Test your knowledge of the code, by taking E.T.E.'s code quiz.
There are 10 questions, which are multiple choice.
Based on the 1999 Code Book.

 


Question #1:
Sheet metal auxiliary gutters shall be supported their entire length at intervals of ___ feet?
(A) 3 feet
(B) 5 feet
(C) 7 feet
(D) 10 feet

Question #2:
In auxiliary gutters, bare conductors shall have a  minimum distance between bare current-carrying metal parts of a different potential mounted on the same surface will not be less than ___ in. a part, and less than ___ in. from parts held in free air.
(A) 2 in./ 1 in.
(B) 2 in./ 2 in.
(C) 3 in./ 2 in.
(D) 6 in./ 6 in.

Question #3:
When sizing J-box for straight pulls on systems over 600V, the length of the box shall not be less than ____ times the outside diameter, over sheath, of the largest shielded or lead covered conductor or cable entering the box.
(A) 6   
(B) 12
(D) 24
(C) 48

Question #4:
What is the minimum clear work space in a manhole where cables are located on both sides?
(A) 2 feet
(B) 2 1/2 feet
(C) 3 feet
(D) 3 1/2 feet

Question #5:
What is the minimum access opening of a round manhole, that has a fixed ladder that does not block the opening, and contains fiber optics?
(A) 24 in.
(B) 26 in.
(C) 30 in..
(D) 32 in.

Question #6:
When sizing J-box for straight pulls on systems under 600V, the length of the box shall not be less than ___ times the trade diameter of the largest raceway.
(A)
(B) 8
(C) 10
(D) 12

Question #7:
How many #12 THHN does the code allowed in a 3 x 2 x 1 1/2 cut in box to reach full number of maximum conductors?
(A) 3
(B) 4
(C) 5
(D) 6

Question #8:
In a switchboard, what is the minimum clearance from the pipe entering the bottom of the enclosure to the bare bus bar? (Keep in mind that this measurement has to be taken from the end fitting on the conduit.)
(A) 6 in.
(B) 8 in.
(C) 10 in.
(D) 12 in.

Question #9:
Is it permissible by code to run THWN wire within 3 inches of a ballast within a ballast compartment?
(A) Yes
(B) No

Question #10:
Is it permissible by code to run MC cable under a computer room floor?
(A) Yes
(B) No


Thanks for taking E.T.E.'s Code quiz!

If you find any discrepancies please feel free to email E.T.E. at http://www.elec-toolbox.com/email.htm.

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