August 2000

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:
When derating conductors for a raceway, is it necessary to count the neutral, which in this case in only carrying unbalance current from other conductors of the same circuit?
(A) Yes
(B) No

Question #2:
Where within ___ft of any building or structure other than a suspending poles or towers, open individual overhead conductors shall be insulated or covered.
(A) 3 ft
(B) 5 ft
(C) 10 ft   
(D) 15 ft

Question #3:
#10 AWG carrying a voltage of 600 volts or less can be spanned overhead ___ft without a messenger cable.
(A) 15 ft      
(B) 25 ft
(C) 50 ft
(D) 100 ft

Question #4:
When installing open conductors on poles that are not on racks or brackets, what is the minimum spacing required between conductors?
(A) 6 in.
(B) 12 in.
(C) 18 in.
(D) 22 in.

Question #5:
What is the clearance from ground when spanning overhead conductors over a commercial parking lot that is not subject to truck traffic?
(A) 10 ft.
(B) 12 ft.

(C) 15 ft.
(D) 18 ft.

Question #6:
Can #12 copper be used as a service lateral?
(A) Yes
(B) No

Question #7:
What is the maximum space required for support on individual open service conductors rated at a maximum of 600v and not exposed to weather?
(A) 2 ft
(B) 3.5 ft
(C) 4.5 ft
(D) 5 ft.

Question #8:
Dry type transformers rated 112 1/2 KVA120/208v shall be ___inches from combustible material unless separated by a fire resistant, heat insulated barrier.
(A) 3 inches
(B) 6 inches
(C) 9 inches
(D) 12 inches

Question #9:
A door seal or curb that is sufficient height to confine oil from the largest transformer within the vault shall be provided and in no case shall have the height be less than ___ inches.
(A) 2 inches
(B) 4 inches
(C) 6 inches
(D) 9 inches

Question #10:
Capacitors containing more than ___ gallons of flammable liquid shall be enclosed in vaults or outdoor fence enclosures.
(A) 1
(B) 2
(C) 3
(D) 5

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

If you find any discrepancies please feel free to email E.T.E. at

Back to ETE's Code Quiz Page

Back to Main Page

2000, Electricians' Toolbox Etc...

Design by TC