NCCER ELECTRICAL CERTIFICATION TEST
2025/2026 EXAM PRACTICE QUESTIONS AND
CORRECT ANSWERS (ELECTRICAL NCCER
CERTIFICATION EXAM 2025) LATEST
The NEC recommends maintaining voltage within a 3% drop. If a branch circuit operates at 240
volts AC. What is the minimum circuit operating volt?
ANS 232
What is the name of the connecting device shown in the diagram?
ANS Split- bolt
The volt amperes in an AC circuit is the same as
ANS Apparent power
What is the voltage drop for a #8 (16.510 mil) copper wire at 120v. 215 feet one way and a load
of 39amps?
ANS 13.1
If a voltage source of a circuit provides 240 volts and there are 5 ohms of resistance, how much
current is in the circuit?
ANS 48
What should be done to change rotation of a 3 phase motor?
ANS Swap any two T leads
What instrument is used to measure current
ANS Ammeter
Which plan indicates the location of structures and equipment on a property?
ANS Detail drawings
Generally, the most ideal conductor is made of
ANS Copper
What is the standard size system used in the United States?
ANS Awg
What is insulating tape?
1
, ANS Non-Conductive adhesive tape
Which of these is used as a guide to assist cables entering a conduit?
ANS Piston
Which of the following is not a reason why electrical svstems must be grounded?
ANS Dissipate lighting
What type of conduit body is characterized by a threaded straight hub on each end
ANS C
Megger will be used to check an in-service cable. The Electrician MUST be sure that the circuit
is
ANS De-energized and locked tagged out, and tested
Rubber gloves MUST be electrically tested at MAXIMUM intervals of
ANS - 6months
A dangerously high voltage is produced when someone opens the secondary circuit of a
ANS Current transformer
Which choice best describes the two types of pushbutton operators typically used in motor
controls
ANS Open and close
In the event of an emergency where the lockout/ tagout device is left secured, who can remove
the lockout/tagout device?
ANS Authoritize supervisor
A drawing showing a point A to point B hookup of conductors is called a
ANS Wiring diagram
A NEMA type _ enclosure is both watertight and corrosion- resistant.-
ANS 4x
What's the MAIN characteristic of a confined space?
ANS Limited access and egress
Which of the following BEST describes where the tvpe and size of overcurrent protection is
found?
2
2025/2026 EXAM PRACTICE QUESTIONS AND
CORRECT ANSWERS (ELECTRICAL NCCER
CERTIFICATION EXAM 2025) LATEST
The NEC recommends maintaining voltage within a 3% drop. If a branch circuit operates at 240
volts AC. What is the minimum circuit operating volt?
ANS 232
What is the name of the connecting device shown in the diagram?
ANS Split- bolt
The volt amperes in an AC circuit is the same as
ANS Apparent power
What is the voltage drop for a #8 (16.510 mil) copper wire at 120v. 215 feet one way and a load
of 39amps?
ANS 13.1
If a voltage source of a circuit provides 240 volts and there are 5 ohms of resistance, how much
current is in the circuit?
ANS 48
What should be done to change rotation of a 3 phase motor?
ANS Swap any two T leads
What instrument is used to measure current
ANS Ammeter
Which plan indicates the location of structures and equipment on a property?
ANS Detail drawings
Generally, the most ideal conductor is made of
ANS Copper
What is the standard size system used in the United States?
ANS Awg
What is insulating tape?
1
, ANS Non-Conductive adhesive tape
Which of these is used as a guide to assist cables entering a conduit?
ANS Piston
Which of the following is not a reason why electrical svstems must be grounded?
ANS Dissipate lighting
What type of conduit body is characterized by a threaded straight hub on each end
ANS C
Megger will be used to check an in-service cable. The Electrician MUST be sure that the circuit
is
ANS De-energized and locked tagged out, and tested
Rubber gloves MUST be electrically tested at MAXIMUM intervals of
ANS - 6months
A dangerously high voltage is produced when someone opens the secondary circuit of a
ANS Current transformer
Which choice best describes the two types of pushbutton operators typically used in motor
controls
ANS Open and close
In the event of an emergency where the lockout/ tagout device is left secured, who can remove
the lockout/tagout device?
ANS Authoritize supervisor
A drawing showing a point A to point B hookup of conductors is called a
ANS Wiring diagram
A NEMA type _ enclosure is both watertight and corrosion- resistant.-
ANS 4x
What's the MAIN characteristic of a confined space?
ANS Limited access and egress
Which of the following BEST describes where the tvpe and size of overcurrent protection is
found?
2
