THE ELECTRICAL NCCER TEST EXAM
2025/2026 QUESTIONS AND ANSWERS
100% PASS
Which Article of the NEC covers grounding? - ANS article 250
Which of the following is a 90 degree, explosion proof fitting? - ANS GUAL
What is a dropout plate? - ANS 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: - ANS 372/575
3-PHASE, 4-WIRE
What does a GFCI breaker do? - ANS Opens a circuit to prevent operation of an electrical
device
What will happen when one or more coils in a winding are grounded? - ANS 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? - ANS 13.3 amps
1 @COPYRIGHT 2025/2026.
,The must be grounded in a bussed gutter if used as the main service equipment. -
ANS Neutral busbar
When wall mounting cable tray, ensure that - ANS 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 - ANS To keep
moisture from creeping in
The outer covering on liguid-tight flexible metal conduit is used for - ANS A moisture seal
A good electrical connection should - ANS Be mechanically and electrically secure
The symbol normally used for duplex - ANS Circle with two parallel lines drawb through it
Disconnecting means are covered in - ANS NEC Section 110-22
In relation to switches, the term throw refers to the - ANS Number of internal operations
that a switch can perform
A 3-phase, 4-wire, 480v service requires ______ current transformer(s) - ANS 3
Services conductors and equipment are covered in - ANS NEC Article 230
The NEC required that all receptacles installed on 25 amp and 20 amp branch circuits be ______
receptacles - ANS Grounding
2 @COPYRIGHT 2025/2026.
, A transformer with the primary of 400 turns and a secondary of 300 turns has a _____ -
ANS Step-down turns ratio of 4:3
The circular mil is based on the - ANS Cross-sectional area of the wire
Of the termination classes listed below, ____ is the only one that provides a seal against
external elements. - ANS Class 1
Unless otherwise noted. the calculations in AC circuits _____ values. - ANS Rms
When the coil turns are increased the _____ - ANS Induced voltage is increased
As the temperature surrounding a self-regulating heating cable rises, the ____ -
ANS Resistance of the polymeric core increases
The motor type that has the highest starting torque is the ____ motor. - ANS Capacitor-start
For a given number of poles, the ____ determines the speed of an AC motor. -
ANS Frequency
Both induction and synchronous motors operate on the principle of a rotating ____ field -
ANS Magnetic
A transformer has 200 turns in the primary, 150 turns in the secondary, and 120VAC applied to
the primary. The voltage across the secondary is: - ANS 90Volts
The output capacity of a motor is rated in - ANS Horsepower
3 @COPYRIGHT 2025/2026.
2025/2026 QUESTIONS AND ANSWERS
100% PASS
Which Article of the NEC covers grounding? - ANS article 250
Which of the following is a 90 degree, explosion proof fitting? - ANS GUAL
What is a dropout plate? - ANS 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: - ANS 372/575
3-PHASE, 4-WIRE
What does a GFCI breaker do? - ANS Opens a circuit to prevent operation of an electrical
device
What will happen when one or more coils in a winding are grounded? - ANS 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? - ANS 13.3 amps
1 @COPYRIGHT 2025/2026.
,The must be grounded in a bussed gutter if used as the main service equipment. -
ANS Neutral busbar
When wall mounting cable tray, ensure that - ANS 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 - ANS To keep
moisture from creeping in
The outer covering on liguid-tight flexible metal conduit is used for - ANS A moisture seal
A good electrical connection should - ANS Be mechanically and electrically secure
The symbol normally used for duplex - ANS Circle with two parallel lines drawb through it
Disconnecting means are covered in - ANS NEC Section 110-22
In relation to switches, the term throw refers to the - ANS Number of internal operations
that a switch can perform
A 3-phase, 4-wire, 480v service requires ______ current transformer(s) - ANS 3
Services conductors and equipment are covered in - ANS NEC Article 230
The NEC required that all receptacles installed on 25 amp and 20 amp branch circuits be ______
receptacles - ANS Grounding
2 @COPYRIGHT 2025/2026.
, A transformer with the primary of 400 turns and a secondary of 300 turns has a _____ -
ANS Step-down turns ratio of 4:3
The circular mil is based on the - ANS Cross-sectional area of the wire
Of the termination classes listed below, ____ is the only one that provides a seal against
external elements. - ANS Class 1
Unless otherwise noted. the calculations in AC circuits _____ values. - ANS Rms
When the coil turns are increased the _____ - ANS Induced voltage is increased
As the temperature surrounding a self-regulating heating cable rises, the ____ -
ANS Resistance of the polymeric core increases
The motor type that has the highest starting torque is the ____ motor. - ANS Capacitor-start
For a given number of poles, the ____ determines the speed of an AC motor. -
ANS Frequency
Both induction and synchronous motors operate on the principle of a rotating ____ field -
ANS Magnetic
A transformer has 200 turns in the primary, 150 turns in the secondary, and 120VAC applied to
the primary. The voltage across the secondary is: - ANS 90Volts
The output capacity of a motor is rated in - ANS Horsepower
3 @COPYRIGHT 2025/2026.
