MASTER ELECTRICIAN EXAM
QUESTIONS AND ANSWERS
An insulated grounding conductor of_____ or smaller shall be identified by a contiguous
white or gray outer finish or by three continuous stripes other than green insulation it's
entire length - Correct Answers -8 AWG 200.6a
6" 210.6a - Correct Answers -Equipment associated with the electrical installation can
be located above or below other equipment within their working space when the
associated equipment does not extend more than_____ from the front of the electrical
equipment.
1 NYC 210.52 - Correct Answers -How many receptacles are required within the
perimeter of a balcony deck or porch with a usable area of last and 20 ft.²
6 1/2 ' - Correct Answers -The minimum headroom of working spaces about motor
control centers is _____ .
30 " / 6 1/2'. NYC 110.33 - Correct Answers -At least one entrance to enclosures for
electrical installations shall not be less than _____ wide and _____ high shall be
provided to give access to the working space around your school equipment over 600 V
nominal.
12'. 230.24b - Correct Answers -What is the minimum height for a vertical overhead
clearance for a service drop conductor over a residential property and driveways with
garage not subject to truck traffic where a voltage does not exceed 300 V to ground.
4" 225.14 - Correct Answers -Open conductors installed outside shall be separated from
open conductors of all the circuits or systems by not less than _____ .
8" NYC 450.42 - Correct Answers -What is the minimum thickness of a transformer
vault floor made up with bricks or cement fill blocks ?
12 300.50 table note D - Correct Answers -Underground service conductors that are not
in case in concrete and then I'll bury 30 inches or more below grade so I have their
location identified by a warning ribbon that is placed in the trench at least_____ inches
above the underground installation for 40 KV
, 125%. 430.22a - Correct Answers -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
5/7 NYC 110.2b 230.64 b - Correct Answers -Where service equipment totaling 1000
kVA or larger is installed separately or as part of a switchboard the room in which such
switchboard is located shall be constructed of non-combustible materials having a two
hour fire rating and should be of dimensions adequate to house the switchboard and to
provide the following minimum clearances. At least_____ feet in front of the switchboard
if is in one line and at least_____ feet in front of the board if boards are installed facing
each other.
12. 230.64 - Correct Answers -Where service equipment totaling 1000 kVA or larger is
installed separately or as part of a switchboard the room in which such switchboard is
located shall be constructed of non-combustible materials having a two hour fire rating
as Shelby of dimensions are good to house the switchboard and to provide the following
minimum clearances: At least _____ inches from the floor to any energized part of the
switchboard except by special permission
4 inches. 680.23 (5) - Correct Answers -What is the minimum distance a wall-mounted
luminaire can be mounted below the surface of the water in a pool?
10. ( time constant (seconds) over resistance times capacitor) - Correct Answers -The
value in M ohms of a resistor required to discharge a 30 µF capacitor to safe levels , in
the time required by the New York City electrical code that has been energized to 650 V
is most nearly
10,000 amps. (KVA/ExIxZ( impedance)) - Correct Answers -What is the short circuit
capacity of a 72KVA transformer with a 240 V secondary and an
impedance of 3%
5. 320.24 - Correct Answers -The bending radius in type AC cable shall be made such
that the cable is not damaged. The radius of the curve of the inner edge of any bend
shall not be less than_____ times of the diameter of the type AC cable.
#8 AWG 230.23b - Correct Answers -What is the minimum size overhead service drop
conductors in copper?
30 inches. 225.14 D1 - Correct Answers -Power conductors installed below
communication conductors shall provide a horizontal climbing space not less than
700. NYC 408.60 E - Correct Answers -A service switchboard sized over 5000 A with a
100% rating shalI have copper bus bars sized on an ampacity of_____ amps per square
inch.
8. NYC 110.31 - Correct Answers -For installations other than enclosed equipment
accessible to unqualified persons, a wall screen or fence shall be used to enclose an
QUESTIONS AND ANSWERS
An insulated grounding conductor of_____ or smaller shall be identified by a contiguous
white or gray outer finish or by three continuous stripes other than green insulation it's
entire length - Correct Answers -8 AWG 200.6a
6" 210.6a - Correct Answers -Equipment associated with the electrical installation can
be located above or below other equipment within their working space when the
associated equipment does not extend more than_____ from the front of the electrical
equipment.
1 NYC 210.52 - Correct Answers -How many receptacles are required within the
perimeter of a balcony deck or porch with a usable area of last and 20 ft.²
6 1/2 ' - Correct Answers -The minimum headroom of working spaces about motor
control centers is _____ .
30 " / 6 1/2'. NYC 110.33 - Correct Answers -At least one entrance to enclosures for
electrical installations shall not be less than _____ wide and _____ high shall be
provided to give access to the working space around your school equipment over 600 V
nominal.
12'. 230.24b - Correct Answers -What is the minimum height for a vertical overhead
clearance for a service drop conductor over a residential property and driveways with
garage not subject to truck traffic where a voltage does not exceed 300 V to ground.
4" 225.14 - Correct Answers -Open conductors installed outside shall be separated from
open conductors of all the circuits or systems by not less than _____ .
8" NYC 450.42 - Correct Answers -What is the minimum thickness of a transformer
vault floor made up with bricks or cement fill blocks ?
12 300.50 table note D - Correct Answers -Underground service conductors that are not
in case in concrete and then I'll bury 30 inches or more below grade so I have their
location identified by a warning ribbon that is placed in the trench at least_____ inches
above the underground installation for 40 KV
, 125%. 430.22a - Correct Answers -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
5/7 NYC 110.2b 230.64 b - Correct Answers -Where service equipment totaling 1000
kVA or larger is installed separately or as part of a switchboard the room in which such
switchboard is located shall be constructed of non-combustible materials having a two
hour fire rating and should be of dimensions adequate to house the switchboard and to
provide the following minimum clearances. At least_____ feet in front of the switchboard
if is in one line and at least_____ feet in front of the board if boards are installed facing
each other.
12. 230.64 - Correct Answers -Where service equipment totaling 1000 kVA or larger is
installed separately or as part of a switchboard the room in which such switchboard is
located shall be constructed of non-combustible materials having a two hour fire rating
as Shelby of dimensions are good to house the switchboard and to provide the following
minimum clearances: At least _____ inches from the floor to any energized part of the
switchboard except by special permission
4 inches. 680.23 (5) - Correct Answers -What is the minimum distance a wall-mounted
luminaire can be mounted below the surface of the water in a pool?
10. ( time constant (seconds) over resistance times capacitor) - Correct Answers -The
value in M ohms of a resistor required to discharge a 30 µF capacitor to safe levels , in
the time required by the New York City electrical code that has been energized to 650 V
is most nearly
10,000 amps. (KVA/ExIxZ( impedance)) - Correct Answers -What is the short circuit
capacity of a 72KVA transformer with a 240 V secondary and an
impedance of 3%
5. 320.24 - Correct Answers -The bending radius in type AC cable shall be made such
that the cable is not damaged. The radius of the curve of the inner edge of any bend
shall not be less than_____ times of the diameter of the type AC cable.
#8 AWG 230.23b - Correct Answers -What is the minimum size overhead service drop
conductors in copper?
30 inches. 225.14 D1 - Correct Answers -Power conductors installed below
communication conductors shall provide a horizontal climbing space not less than
700. NYC 408.60 E - Correct Answers -A service switchboard sized over 5000 A with a
100% rating shalI have copper bus bars sized on an ampacity of_____ amps per square
inch.
8. NYC 110.31 - Correct Answers -For installations other than enclosed equipment
accessible to unqualified persons, a wall screen or fence shall be used to enclose an
