NCCER Final Test Exam Questions and
Answers Latest 2024/2025
Which of the following BEST describes where the type and size of overcurrent
protection is found? - CORRECT ANSWER-Floor plans
Electrical charges are measured in: - CORRECT ANSWER-coulombs
When installing cables smaller than 4/0...
NCCER Final Test Exam Questions and
Answers Latest 2024/2025
Which of the following BEST describes where the type and size of overcurrent
protection is found? - CORRECT ANSWER-Floor plans
Electrical charges are measured in: - CORRECT ANSWER-coulombs
When installing cables smaller than 4/0 in a cable tray, the allowable cable fill area must
NOT be less than - CORRECT ANSWER-cross-sectional areas
What is the purpose of a lockout tag-out system? - CORRECT ANSWER-to prevent
unexpected energizing of equipment or systems
Time delay fuses are most commonly used in circuits subject to what type of current? -
CORRECT ANSWER-Surge
A drawing that shows the heights of an object, but not the depth is a(n) - CORRECT
ANSWER-elevation drawing
The outer covering on liquid-tight flexible metal conduit is used for - CORRECT
ANSWER-a moisture seal
A conductor with 220 mils of insulation would have insulation thickness of: - CORRECT
ANSWER-0.22"
All of the following ratings appear on a circuit breaker nameplate Except: - CORRECT
ANSWER-rated wattage
What is a dropout plate? - CORRECT ANSWER-metal plate with a curved surface to
protect the cable as it enters
IEC style contact or coil are marked with the labels: - CORRECT ANSWER-T1 & T2
An insulated type 600 volt crimp terminal for a 16-14 AWG is typically identified by
which color - CORRECT ANSWER-Blue
Which of the following statements about a service neutral conductor is TRUE? -
CORRECT ANSWER-it may be smaller than the ungrounded conductors
Which electrical values CANNOT be tested using a VOM? - CORRECT ANSWER-
Watts
, What is the voltage drop for a #8 (16,510 cmil) copper wire at 120V, 250ft one way and
load of 39 amps? - CORRECT ANSWER-10.5
Which type of transformer has its windings connected in series? - CORRECT
ANSWER-a delta transformer
What is insulating tape? - CORRECT ANSWER-nonconductive adhesive tape?
A conduit brush or conduit swap is used to do what? - CORRECT ANSWER-remove
water, sand, debris and other light obstruction from the interior of the conduit
Where may nonmetallic conduit (PVC) be used? - CORRECT ANSWER-both above
and below ground
Compounds made of porcelain and plastic are used as - CORRECT ANSWER-
insulators
Eight incandescent lightning fixtures are to be installed. Each fixture is 120 volts, with
200-watt lamp. What is the total connected load? - CORRECT ANSWER-13.3 amps
What is the main characteristic of a confined space? - CORRECT ANSWER-limited
access and egress
Which of the following heat trace cables may NOT be cut to length during installation in
the field? - CORRECT ANSWER-mineral insulated cables
The neutral bus is a sub panel - CORRECT ANSWER-terminates bare and neutral
wires
a type LB conduit body has the cover on: - CORRECT ANSWER-the back
Portable cord-connected hand tools SHALL be double insulated or have - CORRECT
ANSWER-GFCI protection
The type of support that would be used to eliminate the need to offset the conduit where
there is a fitting is a : - CORRECT ANSWER-standoff support
What size wire is needed for a 120V circuit 215ft long one way with a load of 39 amps?
- CORRECT ANSWER-#8 (16,510 cmil)
What is the symbol for the secondary side of a transformer? - CORRECT ANSWER-X
What type of conduit can be safely used in a corrosive environment? - CORRECT
ANSWER-plastic coated RMC galvanized steel
A type "X" conduit body has how many conduit entries? - CORRECT ANSWER-4
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