Master Electrician Exam Review – Electrical Trade
Certification – study material
branch circuit - correct answer ✔✔That portion of a wiring system extending beyond the final
overcurrent device is called the:
Calculated load - correct answer ✔✔The final sum of the computed loads, based on the
minimum code requirements, is the
Resistance - correct answer ✔✔As compared to #10, a #8 wire of the same Iength has less:
0.001 inch - correct answer ✔✔One circular mil is the area of a circle whose diameter is:
1,000,000 cm - correct answer ✔✔A round bus-bar one inch in diameter, has a circular mil area
of:
four times as great - correct answer ✔✔A copper wire with twice the diameter of another wire
has a current carrying capacity:
10.4 - correct answer ✔✔The specific resistance of copper wire @ 20° C in ohms per circular mil
ft. is
permit current to flow - correct answer ✔✔Conductance of an electric circuit is that property
that will:
1O ohms - correct answer ✔✔The equivalent value of 0.1 mho is
,directly proportional to its length - correct answer ✔✔The resistance of copper wire is:
Feeder - correct answer ✔✔The portion of a wiring system between a point of distribution and
the branch circuit overcurrent device is
locking - correct answer ✔✔GFCI protection at a carnival is not required for equipment at circuit
if the receptacle is of the ____________type
not less than 1 1/4 in. from - correct answer ✔✔Where cables or nonmetallic raceways are
installed through bored.holes in joists, rafters, or wood members;holes shall be bored so that
the edge of the hole is the nearest edge -of the wood member.
located on a balcony accessible only to qualified persons
located in a room only accessible to
qualified persons
elevated 8 ft or more above floor or other working surface - correct answer ✔✔To guard live
parts over 50V but less than 600V, equipment is permitted to be
12Ft - correct answer ✔✔Overhead feeder conductors shall have a minimum __________
vertical clearance over residential property and driveways, as well as those commercial areas
not subject to truck traffic, where the voltage is limited to 300 volts-to-ground.
36 inches - correct answer ✔✔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.
50' - correct answer ✔✔What is the maximum run length of a 18AWG fixture wire that is
tapped on to a 20 amp branch circuit?
, power supply failure - correct answer ✔✔When the service disconnecting means is a power-
operated switch or circuit breaker, it shall be able to be opened by hand in the event of a
2 in of concrete - correct answer ✔✔Conductors are considered outside a buildings when they
are buried under not less than
8 - correct answer ✔✔In straight pull, the length of the box shall not be less than. ____times
the trade size of the largest raceway.
18" - correct answer ✔✔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
1000A - correct answer ✔✔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
18" - correct answer ✔✔Receptacle outlets in floors shall not be counted as part of the required
number of receptacle outlets unless located within ______ of the wall
50V - correct answer ✔✔Exposed live parts of motors and controllers operating at or more
between terminals shall be guarded against accidental contact by enclosure or by location
5' - correct answer ✔✔Lighting track shall not be installed less than______ above the finished
floor except' where protected from physical damage or where the track operates at less than 30
V rms, open-circuit voltage
4 - correct answer ✔✔Each general care area patient bed location shall be provided with a
minimum of_______receptacles, which can be single, duplex, or a combination with each
duplex counting as two receptacles
Certification – study material
branch circuit - correct answer ✔✔That portion of a wiring system extending beyond the final
overcurrent device is called the:
Calculated load - correct answer ✔✔The final sum of the computed loads, based on the
minimum code requirements, is the
Resistance - correct answer ✔✔As compared to #10, a #8 wire of the same Iength has less:
0.001 inch - correct answer ✔✔One circular mil is the area of a circle whose diameter is:
1,000,000 cm - correct answer ✔✔A round bus-bar one inch in diameter, has a circular mil area
of:
four times as great - correct answer ✔✔A copper wire with twice the diameter of another wire
has a current carrying capacity:
10.4 - correct answer ✔✔The specific resistance of copper wire @ 20° C in ohms per circular mil
ft. is
permit current to flow - correct answer ✔✔Conductance of an electric circuit is that property
that will:
1O ohms - correct answer ✔✔The equivalent value of 0.1 mho is
,directly proportional to its length - correct answer ✔✔The resistance of copper wire is:
Feeder - correct answer ✔✔The portion of a wiring system between a point of distribution and
the branch circuit overcurrent device is
locking - correct answer ✔✔GFCI protection at a carnival is not required for equipment at circuit
if the receptacle is of the ____________type
not less than 1 1/4 in. from - correct answer ✔✔Where cables or nonmetallic raceways are
installed through bored.holes in joists, rafters, or wood members;holes shall be bored so that
the edge of the hole is the nearest edge -of the wood member.
located on a balcony accessible only to qualified persons
located in a room only accessible to
qualified persons
elevated 8 ft or more above floor or other working surface - correct answer ✔✔To guard live
parts over 50V but less than 600V, equipment is permitted to be
12Ft - correct answer ✔✔Overhead feeder conductors shall have a minimum __________
vertical clearance over residential property and driveways, as well as those commercial areas
not subject to truck traffic, where the voltage is limited to 300 volts-to-ground.
36 inches - correct answer ✔✔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.
50' - correct answer ✔✔What is the maximum run length of a 18AWG fixture wire that is
tapped on to a 20 amp branch circuit?
, power supply failure - correct answer ✔✔When the service disconnecting means is a power-
operated switch or circuit breaker, it shall be able to be opened by hand in the event of a
2 in of concrete - correct answer ✔✔Conductors are considered outside a buildings when they
are buried under not less than
8 - correct answer ✔✔In straight pull, the length of the box shall not be less than. ____times
the trade size of the largest raceway.
18" - correct answer ✔✔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
1000A - correct answer ✔✔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
18" - correct answer ✔✔Receptacle outlets in floors shall not be counted as part of the required
number of receptacle outlets unless located within ______ of the wall
50V - correct answer ✔✔Exposed live parts of motors and controllers operating at or more
between terminals shall be guarded against accidental contact by enclosure or by location
5' - correct answer ✔✔Lighting track shall not be installed less than______ above the finished
floor except' where protected from physical damage or where the track operates at less than 30
V rms, open-circuit voltage
4 - correct answer ✔✔Each general care area patient bed location shall be provided with a
minimum of_______receptacles, which can be single, duplex, or a combination with each
duplex counting as two receptacles
