1|Page
The electrical NCCER test 2025 | actual
exam with 100% verified questions and
correct answers
Which Article of the NEC covers grounding? - Correct-answer-article 250
Which of the following is a 90 degree, explosion proof fitting? - Correct-answer-
GUAL
What is a dropout plate? - Correct-answer-Metal plate with a curved surface for
cable to follow as it passes from the tray
All of the following are common service voltages in the United States EXCEPT: -
Correct-answer-372/575 3-PHASE, 4-WIRE
What does a GFCI breaker do? - Correct-answer-Opens a circuit to prevent
operation of an electrical device
,2|Page
What will happen when one or more coils in a winding are grounded? - Correct-
answer-The motor will automatically blow fuses
Eight incandescent lighting fixtures are to be installed. Each fixture is 120- volts,
with a 200-watt lamp. What is the total connected load? - Correct-answer-13.3
amps
The must be grounded in a bussed gutter if used as the main service equipment. -
Correct-answer-Neutral busbar
When wall mounting cable tray, ensure that - Correct-answer-The building
structure is strong enough to support the tray system
The purpose of sealing cable ends when reels of cable are in storage is - Correct-
answer-To keep moisture from creeping in
,3|Page
The outer covering on liguid-tight flexible metal conduit is used for - Correct-
answer-A moisture seal
A good electrical connection should - Correct-answer-Be mechanically and
electrically secure
The symbol normally used for duplex - Correct-answer-Circle with two parallel
lines drawb through it
Disconnecting means are covered in - Correct-answer-NEC Section 110-22
In relation to switches, the term throw refers to the - Correct-answer-Number of
internal operations that a switch can perform
A 3-phase, 4-wire, 480v service requires ______ current transformer(s) - Correct-
answer-3
, 4|Page
Services conductors and equipment are covered in - Correct-answer-NEC Article
230
The NEC required that all receptacles installed on 25 amp and 20 amp branch
circuits be ______ receptacles - Correct-answer-Grounding
A transformer with the primary of 400 turns and a secondary of 300 turns has a
_____ - Correct-answer-Step-down turns ratio of 4:3
The circular mil is based on the - Correct-answer-Cross-sectional area of the wire
Of the termination classes listed below, ____ is the only one that provides a seal
against external elements. - Correct-answer-Class 1
Unless otherwise noted. the calculations in AC circuits _____ values. - Correct-
answer-Rms
The electrical NCCER test 2025 | actual
exam with 100% verified questions and
correct answers
Which Article of the NEC covers grounding? - Correct-answer-article 250
Which of the following is a 90 degree, explosion proof fitting? - Correct-answer-
GUAL
What is a dropout plate? - Correct-answer-Metal plate with a curved surface for
cable to follow as it passes from the tray
All of the following are common service voltages in the United States EXCEPT: -
Correct-answer-372/575 3-PHASE, 4-WIRE
What does a GFCI breaker do? - Correct-answer-Opens a circuit to prevent
operation of an electrical device
,2|Page
What will happen when one or more coils in a winding are grounded? - Correct-
answer-The motor will automatically blow fuses
Eight incandescent lighting fixtures are to be installed. Each fixture is 120- volts,
with a 200-watt lamp. What is the total connected load? - Correct-answer-13.3
amps
The must be grounded in a bussed gutter if used as the main service equipment. -
Correct-answer-Neutral busbar
When wall mounting cable tray, ensure that - Correct-answer-The building
structure is strong enough to support the tray system
The purpose of sealing cable ends when reels of cable are in storage is - Correct-
answer-To keep moisture from creeping in
,3|Page
The outer covering on liguid-tight flexible metal conduit is used for - Correct-
answer-A moisture seal
A good electrical connection should - Correct-answer-Be mechanically and
electrically secure
The symbol normally used for duplex - Correct-answer-Circle with two parallel
lines drawb through it
Disconnecting means are covered in - Correct-answer-NEC Section 110-22
In relation to switches, the term throw refers to the - Correct-answer-Number of
internal operations that a switch can perform
A 3-phase, 4-wire, 480v service requires ______ current transformer(s) - Correct-
answer-3
, 4|Page
Services conductors and equipment are covered in - Correct-answer-NEC Article
230
The NEC required that all receptacles installed on 25 amp and 20 amp branch
circuits be ______ receptacles - Correct-answer-Grounding
A transformer with the primary of 400 turns and a secondary of 300 turns has a
_____ - Correct-answer-Step-down turns ratio of 4:3
The circular mil is based on the - Correct-answer-Cross-sectional area of the wire
Of the termination classes listed below, ____ is the only one that provides a seal
against external elements. - Correct-answer-Class 1
Unless otherwise noted. the calculations in AC circuits _____ values. - Correct-
answer-Rms
