MASTER ELECTRICIAN EXAM
REVIEW | FORMULAS, CODE
REFERENCES & DIAGRAMS
branch circuit - correct answers ✔✔That portion of a wiring system extending beyond
the final overcurrent device is called the:
Calculated load - correct answers ✔✔The final sum of the computed loads, based on
the minimum code requirements, is the
Resistance - correct answers ✔✔As compared to #10, a #8 wire of the same Iength has
less:
, 0.001 inch - correct answers ✔✔One circular mil is the area of a circle whose diameter
is:
1,000,000 cm - correct answers ✔✔A round bus-bar one inch in diameter, has a circular
mil area of:
four times as great - correct answers ✔✔A copper wire with twice the diameter of
another wire has a current carrying capacity:
10.4 - correct answers ✔✔The specific resistance of copper wire @ 20° C in ohms per
circular mil ft. is
permit current to flow - correct answers ✔✔Conductance of an electric circuit is that
property that will:
1O ohms - correct answers ✔✔The equivalent value of 0.1 mho is
directly proportional to its length - correct answers ✔✔The resistance of copper wire is:
Feeder - correct answers ✔✔The portion of a wiring system between a point of
distribution and the branch circuit overcurrent device is
locking - correct answers ✔✔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 answers ✔✔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 answers ✔✔To
guard live parts over 50V but less than 600V, equipment is permitted to be
12Ft - correct answers ✔✔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 answers ✔✔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 answers ✔✔What is the maximum run length of a 18AWG fixture wire that
is tapped on to a 20 amp branch circuit?
REVIEW | FORMULAS, CODE
REFERENCES & DIAGRAMS
branch circuit - correct answers ✔✔That portion of a wiring system extending beyond
the final overcurrent device is called the:
Calculated load - correct answers ✔✔The final sum of the computed loads, based on
the minimum code requirements, is the
Resistance - correct answers ✔✔As compared to #10, a #8 wire of the same Iength has
less:
, 0.001 inch - correct answers ✔✔One circular mil is the area of a circle whose diameter
is:
1,000,000 cm - correct answers ✔✔A round bus-bar one inch in diameter, has a circular
mil area of:
four times as great - correct answers ✔✔A copper wire with twice the diameter of
another wire has a current carrying capacity:
10.4 - correct answers ✔✔The specific resistance of copper wire @ 20° C in ohms per
circular mil ft. is
permit current to flow - correct answers ✔✔Conductance of an electric circuit is that
property that will:
1O ohms - correct answers ✔✔The equivalent value of 0.1 mho is
directly proportional to its length - correct answers ✔✔The resistance of copper wire is:
Feeder - correct answers ✔✔The portion of a wiring system between a point of
distribution and the branch circuit overcurrent device is
locking - correct answers ✔✔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 answers ✔✔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 answers ✔✔To
guard live parts over 50V but less than 600V, equipment is permitted to be
12Ft - correct answers ✔✔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 answers ✔✔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 answers ✔✔What is the maximum run length of a 18AWG fixture wire that
is tapped on to a 20 amp branch circuit?
