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Final Exam NR302 NR 302 Latest Health Assessment Chamberlain
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Final Exam - NR302 / NR 302 (Latest 2023 / 2024) : Health Assessment - Chamberlain
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Final Exam - NR302 / NR 302 (Latest 2023 /2024) : Health Assessment - Chamberlain
1). Section ____ of the nec states that luminaries, switches, receptacles and other electrical
equipment not associated with the hydro massage tub shall be installed according to____
Ans: 680.72, chapters 1 through 4
2). Each 10' section of lighting track is rated for 15 amps at 125 volts. the circuit supplying
this track can be connected to a ___- amp, single pole breaker in a 120/240 volt singe
phase, 3 wire panel.
i. 15 ii. 20
Ans: I only
3). Fire alarm circuits and equipment shall be grounded in accordance with nec article______.
Ans: 250
4). When a 120 volt receptacle and a tv outlet are mounted in a double gang box, _____ is
required in the box to isolate the tv conductors from the power wiring.
Ans: a barrier
5). Plan ahead of time for lane changes; ____; and signal your intentions to traffic behind and
swing over in a long, gradual tangent.
i check your rear view mirrors. ii. reduce your speed. iii. check your blind spots.
Ans: I and III only
6). Is it permitted to connect the metal frame of the attic exhaust fan to the grounded
conductor?
Ans: no
7). The nec reference that permits or prohibits connecting the metal frame of the attic
exhaust fan to the grounded conduction is_____,
PaperStoc.com Page 1 of 18
, Ans: 250.142 (B)
8). You are sent on a service call to install power for a new central air-conditioning unit. the
nameplate has the following information: ph 1 volts 240 mca 25.5 mocp 45 a fuse. the old
(inefficient) unit has 6 awg copper branch circuit conductors, a 60-a braker in the panel,
and 60-amp fuses in the ac disconnect switch next to the unit. you are permitted to____.
Ans: leave the ^0-A breaker in the panel but change the fuses in the disconnect to 45
amps
9). When class 2 control circuit wiring enters the wiring enclosure of a piece of equipment,
this wiring is permitted to pass through the line voltage of the enclosure if no splices are
made in the class 2 wiring.
t/f
Ans: False
10). When measuring the depth of a buried raceway, you must measure from the top of finish
grade to the ____ of the buried raceway.
Ans: Top
11). Television antenna and lead-in wires are covered under article ____.
Ans: 810
12). Class 2 control circuit wiring that supplies a piece of equipment____ permitted to be
supported by attachment to the power raceway or cable that supplies the equipment.
i/in
Ans: is not
13). What is the minimum burial depth of a 20-amp, gfci protected, 120 volt branch circuit
under a two family dwelling? the wiring method is type uf cable. the duplex is not built on a
concrete slab.
Ans: 12''
14). When laying out the wall receptacle locations in a bedroom in a house, a receptacle is
required to be installed in a wall space that is 1'-10' wide.
t/f
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, Ans: False
15). An air conditioner will be installed on the roof of a sporting goods store. the nec requires
that a 15- or 20- ampere, 125 volt receptacle be installed for servicing the equipment. the
receptacle will be outside and exposed to weather. the receptacle is required to____.
i. have a weather proof cover installed
ii. be gfci protected
iii. be located 25 feet or less from the equipment.
Ans: I,II,III
16). What size thwn copper conductors are required to supple a 15,000 watt, 240-volt furnace?
(assume single phace and 75c terminators).
Ans: 4 awg
17). What nec article covers community antenna and television and radio distribution?
Ans: 820
18). An air conditioner will be installed on the roof of a "strip" shopping center. the nec requires
that a 15- or 20- ampere, 125-volt receptacle be installed for servicing the equipment. the
receptacle will be outside and exposed to weather. the receptacle is _____.
i. required to have a weatherproof cover installed
ii. permitted to be connected to circuit on the load side of the air conditione disconnection
means.
Ans: I only
19). The white conductor contained in a 12/2 with ground mc cable can be marked with orange
taper where visible or accessible and used to feed the hot to a switch.
t/f
Ans: False
20). What standard size fuses would be required for a 24-volt, 15,000- watt furnace? (assume
single phase).
Ans: 80
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