EXAM REVIEW SOLVED QUESTIONS WITH
VERIFIED ANSWERS
●● 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
●● 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
●● 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, 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''
●● receptacles outlets in floors shall not be counted as part of the
required number of receptacles outlets unless located within of the wall.
Answer: 18''
●● the number of receptacles outlets for guest rooms in hotels and
motels shall not be less than that required for a dwelling unit. these