IEC YEAR 4 FINAL EXAM NEWEST
ACTUAL EXAM COMPLETE
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |
ALREADY GRADED A+ 2024-2025
Outdoor mobile home disconnecting means shall be
installed so the bottom of the enclosure containing the
disconnecting means is not less than ___ above finished
grade or the working platform.
Select one:
a. 11/2 ft.
b. 6 ft-7 in.
c. 2 ft.
d. 6 ft-6 in.
e. 21/2 ft. Correct Answer c. 2 ft.
Switching devices shall be located at least ___ horizontally
from the inside walls of the pool.
Select one:
a. 18"
b. 5'
c. 2'
d. 4' Correct Answer a. 18
All fixed metal parts that are within ___ feet horizontally of
the inside walls of a permanently installed swimming pool
must be bonded together.
Select one:
,a. 10
b. 5
c. 20
d. 7
e. 8 Correct Answer b. 5
A 120-volt receptacle located at ___ feet from the inside
wall of a swimming pool must be GFCI protected.
Select one:
a. 19
b. 15
c. 10
d. all of these Correct Answer d. all of these
A wet-niche swimming pool luminaire is supplied by a 14
AWG flexible cord and protected with a 15-amp, GFCI
breaker. The minimum size equipment grounding
conductor required is ___ AWG.
Select one:
a. 10
b. 14
c. 8
d. 12
e. 16 Correct Answer b. 14
No receptacle shall ever be permitted to be installed within
___ feet of the inside walls of a pool.
Select one:
a. 20
b. 18
c. 6
,d. 15 Correct Answer c. 6
No luminaires shall be installed in swimming pools for
operation on supply circuits over ___ volts between
conductors.
Select one:
a. 150
b. 30
c. 300
d. 50
e. 130 Correct Answer a. 150
A branch circuit is supplying a single hermetic refrigerant
motor-compressor for an air conditioning unit. The
hermetic refrigerant motor-compressor rated-load current
is 18 amperes. If a 30-ampere fuse will not start the motor-
compressor, the maximum rating of the branch-circuit
short-circuit and ground-fault protective device may be
increased to ___.
Select one:
a. 45 amps
b. 35 amps
c. 50 amps
d. 40 amps Correct Answer d. 40 amps
Determine the minimum copper THHN conductor size
required to connect a 15 KVAR, 480-volt, three-phase
capacitor bank to a 50 hp, three-phase motor.
Select one:
a. 10 AWG
b. 14 AWG
, c. 12 AWG
d. 8 AWG
e. 6 AWG Correct Answer a. 10 AWG
The wiring of an outdoor sign that is portable or mobile
and is in a wet location shall be ___.
Select one:
a. protected by a 20-ampere overcurrent protective device
b. provided with ground-fault circuit-interrupter protection
for personnel
c. provided with factory-installed ground-fault circuit-
interrupter protection for personnel
d. none of the these Correct Answer c. provided with
factory-installed ground-fault circuit-interrupter protection
for personnel
The maximum number of 15-amp receptacles permitted
on a freestanding office partition is ___.
Select one:
a. 6
b. 13
c. 2
d. 10 Correct Answer b. 13
Conductors that supply one or more arc welders shall be
protected by an overcurrent device rated or set at not
more than ___% of the conductor ampacity.
Select one:
a. 70
b. 200
c. 125
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