Master Electrician License Exam Questions with
Certified Solutions
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
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 receptacles can be located to be convenient for permanent furniture
layout but at least receptacles outlets shall be readily accessible. - Answer two
at least one receptacle outlet shall be installed within of the top of a show window for each 12 linear
feet measured horizontally across its length - Answer 18"
an insulated grounded conductor of or smaller shall be identified by a continuous white or gray outer
finish, or by three continuous white stripes on other than green insulation along its entire length -
Answer 6
which of the following are not permitted for the protection of equipment in electrical vault - Answer
stud walls covered with wallboard having a 3 hour rating
dwelling units circuits running through another dwelling units in common areas. what percentage of
change will require it to be brought up to current code - Answer 50%
access openings in a manhole shall be not less than - Answer 26"
receptacles outlets installed for a appliance in a dwelling unit, such as a laundry equipment shall be
located within of the intended location of the appliance - Answer 6ft
there shall be a minimum of one branch circuit for laundry outlet - Answer 20 amp
manhole openings for personnel shall be located where they are not directly above electrical equipment
or conductors in the enclosure. where this is not practicable - Answer a protective barrier or a fixed
ladder shall be provided
two or more small appliance branch circuits shall be provided to supply power for receptacle outlets in
the dwelling unit kitchen, dining room, breakfast room, or similar dining areas - Answer 20 amp
Certified Solutions
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
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 receptacles can be located to be convenient for permanent furniture
layout but at least receptacles outlets shall be readily accessible. - Answer two
at least one receptacle outlet shall be installed within of the top of a show window for each 12 linear
feet measured horizontally across its length - Answer 18"
an insulated grounded conductor of or smaller shall be identified by a continuous white or gray outer
finish, or by three continuous white stripes on other than green insulation along its entire length -
Answer 6
which of the following are not permitted for the protection of equipment in electrical vault - Answer
stud walls covered with wallboard having a 3 hour rating
dwelling units circuits running through another dwelling units in common areas. what percentage of
change will require it to be brought up to current code - Answer 50%
access openings in a manhole shall be not less than - Answer 26"
receptacles outlets installed for a appliance in a dwelling unit, such as a laundry equipment shall be
located within of the intended location of the appliance - Answer 6ft
there shall be a minimum of one branch circuit for laundry outlet - Answer 20 amp
manhole openings for personnel shall be located where they are not directly above electrical equipment
or conductors in the enclosure. where this is not practicable - Answer a protective barrier or a fixed
ladder shall be provided
two or more small appliance branch circuits shall be provided to supply power for receptacle outlets in
the dwelling unit kitchen, dining room, breakfast room, or similar dining areas - Answer 20 amp
