IEC YEAR 2 FINAL EXAM NEWEST 2024-2025 ACTUAL EXAM COMPLE
80 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED AN-
SWERS)
Study online at https://quizlet.com/_fte0sk
1. Anex _____ in the NEC contains examples of load D
calculations for dwellings.
2. Which of the installations listed below would be a wet all of these
location?
-a receptacle installed on the exterior wall of a building
- a run of PVC conduit installed on a fishing pier
-a luminaire installed on a parking lot pole
3. Which of the following is an example of a bare con- the bare aluminum
ductor? wire twisted with
- a 12 awg THHN copper wire triplex
- the bare ground wire contained within romex (NM
cable) sheathing
-the bare aluminum wire twisted with triplex
4. Which of the following statements is TRUE for an in- it can share a neu-
dividual (or dedicated) branch circuit that is run in a tral with another
conduit with other circuits? circuit
5. Equipment designed to open circuits under ____ shall all of these
have an interrupting rating not less than the nominal
circuit voltage and the current that is available at the
line side of the equipment.
- short circuit
-overload
-ground fault
6. The NEC permits the insulation for an ungrounded any of these
conductor to be _____ in color.
- orange
-black
-brown
-yellow
7. Which of the following locations requires that a a townhome
three-way switch be installed at the lower landing and
another three-way switch be installed at the upper
, IEC YEAR 2 FINAL EXAM NEWEST 2024-2025 ACTUAL EXAM COMPLE
80 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED AN-
SWERS)
Study online at https://quizlet.com/_fte0sk
landing to control the stair way lighting between the
1st and 2nd floors?
8. A 175- amp breaker protects a feeder that originates 2/0
in a 277/480-volt, 3-ph, 4 wire service panel in an office
building. Which of the following conductors is the
smallest size permitted for the feeder ?
9. A 200-amp breaker protects a feeder that originates in 3/0
a 120/240 volt, 3 ph, 4 wire service panel in a movie
theatre. Which of the following THHN/THWN conduc-
tors is the smallest size permitted for the feeder ?
10. The maximum number of 3-pole circuit breakers used 6
as service disconnects permitted in a 3 phase panel-
board is ______.
11. Which of the following are characteristics of all of these
THHN/THWN insulation?
- heat-resistant
- a nylon outer covering or some equivalent
- flame retardant
-moisture-resistant
12. For the purpose of determining the number of is not
current-carrying conductors in a cable or conduit,
the neutral _____ counted when the branch cir-
cuit is 120/240-volt, 1 phase, 3 wire connected to a
120/240-volt, 3 phase delta, 4 wire panelboard. Each of
the two circuits carries 16 amps and serves resistive
(linear) loads.
13. Where a 120/240 volt, 1 phase, 3 wire multiwire branch ii or iii only
circuit is connected to a "split-wired" duplex recepta-
cle in a barber shop, the branch-circuit OCPD/discon-
nect is permitted to be ______
i. two single-pole circuit breakers without handle ties
ii. two single-pole circuit breakers with identified han-
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