Master Electrician Exam Review with Smart Questions and Answers – 100%
Solved
#4 cooper & #2 Aluminum - ✔✔✔-What is the minimum size Service Conductor allowed for a
dwelling unit
0.001 inch - ✔✔✔-One circular mil is the area of a circle whose diameter is:
0.622" - ✔✔✔-The internal diameter of 1/2"EMT is:
1 - ✔✔✔-At least_____ 125 V, single phase, 15 A or 20 A, duplex with ground-fault circuit
interrupter receptacle shall be provided in each elevator machine room and elevator machinery
space.
1 1/2" - ✔✔✔-Flat:top underfloor raceways over 4 inches, but less 8 inches wide, with a
minimum 1 inch spacing between raceways, shall be covered with concrete to a depth of not
iess than 1 inch. Raceways spaced less that 1 inch apart shall be covered with a concrete to a
depth of
1,000,000 cm - ✔✔✔-A round bus-bar one inch in diameter, has a circular mil area of:
1.5" - ✔✔✔-The outside diameter of a threaded rigid conduit is measured to be about two
Inches. The nominal trade size is:
10 AWG Copper - ✔✔✔-Service Lateral conductors that supply power to limited loads of a
single branch circuit-such as a small polyphase power, controlled water heaters, and similar
loads-shall not be smaller than
10 feet - ✔✔✔-Nonmetallic cables can enter the top of surface-mounted cabinets, cutout
boxes, and meter socket enclosures through nonflexible raceways not less than 18 in. or more
than ______ft in length if all of the required conditions are met.
,Master Electrician Exam Review with Smart Questions and Answers – 100%
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10 feet above grade level - ✔✔✔-Open conductors which are not service entrance cables shall
not be installed less than which of the following
10.4 - ✔✔✔-The specific resistance of copper wire @ 20° C in ohms per circular mil ft. is
10' - ✔✔✔-Lighting systems operating at 30V or less shall not be·installed within_______of
pools, spas, fountains, or similar locatipns
1000A - ✔✔✔-Ground fault protection of equipment shall be provided for solidly grounded wye
electrical services of more than 150 volts-to-ground, but not exceeding 600V phase-to-phase for
each service
disconnecting means rated __________
1000A - ✔✔✔-Ground-fault protection of equipment shall be provided fro solidly grounded
wye electrical services of more than 150 volts-to-ground, but not exceeding 600V phase-
to..phase for each service disconnecting means rated
115% - ✔✔✔-A disconnecting means that serves a hermetic refrigerant motor compressor shall
have an ampere rating of at least percent of the nameplate rated load current or branch circuit
selection current, whichever is greater.
116 Conductors - ✔✔✔-What is the Max number of #6 THHN current carrying conductors in 4"
EMT for general use is
12 - ✔✔✔-How many # 10 conductors can be legally installed in a 4 inch square box, 2 1/8
deep?
12 /40 - ✔✔✔-Where communications wires and cables and electric light or power conductors
are supported by the same pole and are run paralled to each other in span , the·supply service
, Master Electrician Exam Review with Smart Questions and Answers – 100%
Solved
drops of 0-750 volts running above and parallel to communications service drops shall have a
minimum separation of _______inches at any point in the
span, including the point of and at their attachment to the building, provided the nongrounded
conductors are insulated and that a clearance of not less than_______ inches is maintained
between the two services at the pole
12 AWG - ✔✔✔-Communications circuits shall have a minimum grounding conductor of
_____AWG
12 feet - ✔✔✔-The verticaI clearance from ground level over a residential driveway for
overhead service conductors not subject to truck traffic and are less than 300 volts to ground
shall be _____ ft:
12" - ✔✔✔-For cord and plug connected electric vehicle supply equipment is used, the
interrupting device of a
listed personnel protection system shall be provided and shall be located in the power supply
cable not more than ______from the attachment plug.
12" - ✔✔✔-Underground service conductors that are not encased in concrete and that are
buried 30 inches or more below grade, shall have their location identified by a warning ribbon
that is placed in the trench at least_______inches above the underground installation for 40KV
1200 Amperes - ✔✔✔-19. When an equipment room houses electrical equipment rated at
LEAST _____or more, the personnel doors intended for entrance to and egress from the
working space, shall open in the direction of egress.
125% - ✔✔✔-Branch circuit conductor that supply a single motor used in a continuous duty
application shall have an ampacity of not less than Percent of the motors full-load current
Solved
#4 cooper & #2 Aluminum - ✔✔✔-What is the minimum size Service Conductor allowed for a
dwelling unit
0.001 inch - ✔✔✔-One circular mil is the area of a circle whose diameter is:
0.622" - ✔✔✔-The internal diameter of 1/2"EMT is:
1 - ✔✔✔-At least_____ 125 V, single phase, 15 A or 20 A, duplex with ground-fault circuit
interrupter receptacle shall be provided in each elevator machine room and elevator machinery
space.
1 1/2" - ✔✔✔-Flat:top underfloor raceways over 4 inches, but less 8 inches wide, with a
minimum 1 inch spacing between raceways, shall be covered with concrete to a depth of not
iess than 1 inch. Raceways spaced less that 1 inch apart shall be covered with a concrete to a
depth of
1,000,000 cm - ✔✔✔-A round bus-bar one inch in diameter, has a circular mil area of:
1.5" - ✔✔✔-The outside diameter of a threaded rigid conduit is measured to be about two
Inches. The nominal trade size is:
10 AWG Copper - ✔✔✔-Service Lateral conductors that supply power to limited loads of a
single branch circuit-such as a small polyphase power, controlled water heaters, and similar
loads-shall not be smaller than
10 feet - ✔✔✔-Nonmetallic cables can enter the top of surface-mounted cabinets, cutout
boxes, and meter socket enclosures through nonflexible raceways not less than 18 in. or more
than ______ft in length if all of the required conditions are met.
,Master Electrician Exam Review with Smart Questions and Answers – 100%
Solved
10 feet above grade level - ✔✔✔-Open conductors which are not service entrance cables shall
not be installed less than which of the following
10.4 - ✔✔✔-The specific resistance of copper wire @ 20° C in ohms per circular mil ft. is
10' - ✔✔✔-Lighting systems operating at 30V or less shall not be·installed within_______of
pools, spas, fountains, or similar locatipns
1000A - ✔✔✔-Ground fault protection of equipment shall be provided for solidly grounded wye
electrical services of more than 150 volts-to-ground, but not exceeding 600V phase-to-phase for
each service
disconnecting means rated __________
1000A - ✔✔✔-Ground-fault protection of equipment shall be provided fro solidly grounded
wye electrical services of more than 150 volts-to-ground, but not exceeding 600V phase-
to..phase for each service disconnecting means rated
115% - ✔✔✔-A disconnecting means that serves a hermetic refrigerant motor compressor shall
have an ampere rating of at least percent of the nameplate rated load current or branch circuit
selection current, whichever is greater.
116 Conductors - ✔✔✔-What is the Max number of #6 THHN current carrying conductors in 4"
EMT for general use is
12 - ✔✔✔-How many # 10 conductors can be legally installed in a 4 inch square box, 2 1/8
deep?
12 /40 - ✔✔✔-Where communications wires and cables and electric light or power conductors
are supported by the same pole and are run paralled to each other in span , the·supply service
, Master Electrician Exam Review with Smart Questions and Answers – 100%
Solved
drops of 0-750 volts running above and parallel to communications service drops shall have a
minimum separation of _______inches at any point in the
span, including the point of and at their attachment to the building, provided the nongrounded
conductors are insulated and that a clearance of not less than_______ inches is maintained
between the two services at the pole
12 AWG - ✔✔✔-Communications circuits shall have a minimum grounding conductor of
_____AWG
12 feet - ✔✔✔-The verticaI clearance from ground level over a residential driveway for
overhead service conductors not subject to truck traffic and are less than 300 volts to ground
shall be _____ ft:
12" - ✔✔✔-For cord and plug connected electric vehicle supply equipment is used, the
interrupting device of a
listed personnel protection system shall be provided and shall be located in the power supply
cable not more than ______from the attachment plug.
12" - ✔✔✔-Underground service conductors that are not encased in concrete and that are
buried 30 inches or more below grade, shall have their location identified by a warning ribbon
that is placed in the trench at least_______inches above the underground installation for 40KV
1200 Amperes - ✔✔✔-19. When an equipment room houses electrical equipment rated at
LEAST _____or more, the personnel doors intended for entrance to and egress from the
working space, shall open in the direction of egress.
125% - ✔✔✔-Branch circuit conductor that supply a single motor used in a continuous duty
application shall have an ampacity of not less than Percent of the motors full-load current
