Master Electrician License Questions and Answers with
Solutions UPDATED!!!
If the cover for an underground pull box used for circuits over
600v is not locked, bolted, or screwed into place, then it must
weigh equal to - ANSWER 100 pounds
The maximum total voltage droop on a branch circuit is -
ANSWER 3%
the floors of vaults in contact with the earth shall be of concrete
that is not less then - ANSWER 6 inches thick
according to the NEC bare live parts are guarded from the
public in the following methods except - ANSWER protected by
fireproof curtain
equipment associated with the electrical installation can be
located above or below other electrical equipment within their
working space when the associated equipment dose not extend
more then - ANSWER 6inches
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when the code uses the words it means the identified actions
are allowed but not required, and may be optional - ANSWER
shall be permitted
a 120 volt 15-20 amp receptacle shall be located with in of air
conditioning and refrigeration, heating systems - ANSWER 25
feet
in the NEC the words . indicate a mandatory requirement -
ANSWER shall not or shall be permitted
as per New York city code in addition to the number of circuits
required in a dwelling unit an individual branch circuit shall be
provided for each receptacle - ANSWER air conditioner
the dimensions of working space for access to live parts
operating at 300 volts normally to ground where exposed to live
parts on both sides of the workspace is - ANSWER 4 feet
when leads are supplied with lampholders with lamp holders
the conductor attached to the screw shell shall have a finish -
ANSWER white or gray
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how many receptacles are required within the perimeter of the
balcony, deck or porch with the useable . area of 20 sq ft -
ANSWER one
where conductors of different systems are installed in the same
raceway, one system shall have a neutral having an outer
covering of white or gray and each other system having a
neutral shall have another covering of - ANSWER white with a
color stripe other than green
outlets may be installed in a dwelling unit for specific appliance
such as laundry equipment. the maximum distance between
this outlet and appliance - ANSWER 6 feet
on a 4 wire delta system where the midpoint of one phase
winding is grounded only the conductor shall have a higher
phase voltage to ground. the conductor shall be marked -
ANSWER orange
where this code specifies that one equipment shall be ''in sight
from'' ''within sight from'' or ''within sight of'',and so forth,
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another equipment, the specified equipment is to be visible and
not more than distance from the other - ANSWER 50 feet
a door used by personnel to exit the work space that is less
than 25 feet from the work space shall - ANSWER swing
outward with simple ease
the authority having jurisdiction has the responsibility -
ANSWER for making interpretations of rules
where rear access is required to work on de-energized parts on
the back of enclosed equipment a minimum working space of
horizontally shall be provided - ANSWER 36 inches
for equipment rated at 1200 amps or more and over 6 feet wide
that contains overcurrent devices, switching devices, or control
devices. there shall be one entrance to and egress from the
required working space not less than 24'' wide and high at each
end of work space. - ANSWER 6' 6''