1|Page
NCCER ELECTRICAL FINAL CERTIFICATION EXAM |2025-2026
LATEST UPDATED| 290 REAL EXAM QUESTIONS AND ANSWERS |
100% RATED CORRECT | 100% VERFIED SOLUTIONS | ALREADY
GRADED A+
Which Article of the NEC covers grounding? - (answer)article 250
Which of the following is a 90 degree, explosion proof fitting? - (answer)GUAL
What is a dropout plate? - (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: -
(answer)372/575 3-PHASE, 4-WIRE
What does a GFCI breaker do? - (answer)Opens a circuit to prevent operation of an electrical
device
What will happen when one or more coils in a winding are grounded? - (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? - (answer)13.3 amps
,2|Page
The must be grounded in a bussed gutter if used as the main service equipment. -
(answer)Neutral busbar
When wall mounting cable tray, ensure that - (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 - (answer)To keep
moisture from creeping in
The outer covering on liguid-tight flexible metal conduit is used for - (answer)A moisture seal
A good electrical connection should - (answer)Be mechanically and electrically secure
The symbol normally used for duplex - (answer)Circle with two parallel lines drawb through it
Disconnecting means are covered in - (answer)NEC Section 110-22
In relation to switches, the term throw refers to the - (answer)Number of internal operations that
a switch can perform
A 3-phase, 4-wire, 480v service requires ______ current transformer(s) - (answer)3
,3|Page
Services conductors and equipment are covered in - (answer)NEC Article 230
The NEC required that all receptacles installed on 25 amp and 20 amp branch circuits be ______
receptacles - (answer)Grounding
A transformer with the primary of 400 turns and a secondary of 300 turns has a _____ -
(answer)Step-down turns ratio of 4:3
The circular mil is based on the - (answer)Cross-sectional area of the wire
Of the termination classes listed below, ____ is the only one that provides a seal against external
elements. - (answer)Class 1
Unless otherwise noted. the calculations in AC circuits _____ values. - (answer)Rms
When the coil turns are increased the _____ - (answer)Induced voltage is increased
As the temperature surrounding a self-regulating heating cable rises, the ____ -
(answer)Resistance of the polymeric core increases
The motor type that has the highest starting torque is the ____ motor. - (answer)Capacitor-start
, 4|Page
For a given number of poles, the ____ determines the speed of an AC motor. -
(answer)Frequency
Both induction and synchronous motors operate on the principle of a rotating ____ field -
(answer)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: - (answer)90Volts
The output capacity of a motor is rated in - (answer)Horsepower
The synchronous speed at which a pole, 60 Hz induction motor operates is rpm. - (answer)1,800
The sine of 0 degree is - (answer)0
Meters used in AC circuits indicate the - (answer)Effective
The component labeled 7 in figure 1 is a(n) - (answer)End seal
In an AC circuit containing resistance only _____ will flow if the resistance is 10 ohms and the
voltage is 120V. - (answer)12A
The _____ rotor types are generally rugged. - (answer)Squirrel cage
NCCER ELECTRICAL FINAL CERTIFICATION EXAM |2025-2026
LATEST UPDATED| 290 REAL EXAM QUESTIONS AND ANSWERS |
100% RATED CORRECT | 100% VERFIED SOLUTIONS | ALREADY
GRADED A+
Which Article of the NEC covers grounding? - (answer)article 250
Which of the following is a 90 degree, explosion proof fitting? - (answer)GUAL
What is a dropout plate? - (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: -
(answer)372/575 3-PHASE, 4-WIRE
What does a GFCI breaker do? - (answer)Opens a circuit to prevent operation of an electrical
device
What will happen when one or more coils in a winding are grounded? - (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? - (answer)13.3 amps
,2|Page
The must be grounded in a bussed gutter if used as the main service equipment. -
(answer)Neutral busbar
When wall mounting cable tray, ensure that - (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 - (answer)To keep
moisture from creeping in
The outer covering on liguid-tight flexible metal conduit is used for - (answer)A moisture seal
A good electrical connection should - (answer)Be mechanically and electrically secure
The symbol normally used for duplex - (answer)Circle with two parallel lines drawb through it
Disconnecting means are covered in - (answer)NEC Section 110-22
In relation to switches, the term throw refers to the - (answer)Number of internal operations that
a switch can perform
A 3-phase, 4-wire, 480v service requires ______ current transformer(s) - (answer)3
,3|Page
Services conductors and equipment are covered in - (answer)NEC Article 230
The NEC required that all receptacles installed on 25 amp and 20 amp branch circuits be ______
receptacles - (answer)Grounding
A transformer with the primary of 400 turns and a secondary of 300 turns has a _____ -
(answer)Step-down turns ratio of 4:3
The circular mil is based on the - (answer)Cross-sectional area of the wire
Of the termination classes listed below, ____ is the only one that provides a seal against external
elements. - (answer)Class 1
Unless otherwise noted. the calculations in AC circuits _____ values. - (answer)Rms
When the coil turns are increased the _____ - (answer)Induced voltage is increased
As the temperature surrounding a self-regulating heating cable rises, the ____ -
(answer)Resistance of the polymeric core increases
The motor type that has the highest starting torque is the ____ motor. - (answer)Capacitor-start
, 4|Page
For a given number of poles, the ____ determines the speed of an AC motor. -
(answer)Frequency
Both induction and synchronous motors operate on the principle of a rotating ____ field -
(answer)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: - (answer)90Volts
The output capacity of a motor is rated in - (answer)Horsepower
The synchronous speed at which a pole, 60 Hz induction motor operates is rpm. - (answer)1,800
The sine of 0 degree is - (answer)0
Meters used in AC circuits indicate the - (answer)Effective
The component labeled 7 in figure 1 is a(n) - (answer)End seal
In an AC circuit containing resistance only _____ will flow if the resistance is 10 ohms and the
voltage is 120V. - (answer)12A
The _____ rotor types are generally rugged. - (answer)Squirrel cage
