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NCCER ELECTRICAL CERTIFICATION TEST LATEST 2025 WITH 400 EXAM PRACTICE QUESTIONS AND CORRECT ANSWERS/ ELECTRICAL NCCER CERTIFICATION EXAM 2025 (MOST RECENT)$29.99
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NCCER ELECTRICAL CERTIFICATION TEST
LATEST 2025 WITH 400 EXAM PRACTICE
QUESTIONS AND CORRECT ANSWERS/
ELECTRICAL NCCER CERTIFICATION EXAM
2025 (MOST RECENT)
An electrician reporting to the work area notices that the temporary wiring has
been damage. what should the electrician do?
Answer:
immediately report it to the supervisors
According to NEC article 240.4 (D) (5), 12 AWG copper shall be protected against
over current buy a device with a MAXIMUM ampacity of.
Answer:
20amps
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?
Answer:
220.
To test the insulation resistance between the heating cable conductors and the
metallic grounding use a:
Answer:
Megohmmeter
In the event of an emergency where the lockout/ tagout device is left secured, who
can remove the lockout/tagout device?
Answer:
Authorize supervisor
A dangerously high voltage is produced when someone opens the secondary circuit
of a:
Answer:
Current transformer
pg. 1
,A drawing showing a point A to point B hookup of conductors is called a:
Answer:
Wiring diagram
A NEMA type __ enclosure is both watertight and corrosion- resistant.
Answer:
4X
What is the total resistance of a circuit that has aa 50 - CHM resistor, a 75 - ohm
resistor, and a 100 - CHM resistor in series?
Answer:
225 ohms
Time delay fuses are MOST commonly used in circuits subject to what type of
current?
Answer:
Surge (in rush)
All parts of a metal cable tray must be bonded together and:
Answer:
grounded
The frequency of a circuit is 15 cycles per 1/4 second: what is the hertz (HZ) rating
of the circuit?
Answer:
60
The neutral bus in a sub panel:
Answer:
is isolated from the grounded bus
Which symbol represents the overload relay in the schematic diagram?
Answer:
OL
The transformer coils of the primary and secondary share no electrical connection,
but current flows through them due to:
pg. 2
,Answer:
Mutual induction
A NEMA type__ enclosure offers only protection against incidental contact:
Answer:
1
Which of the following category ratings would a meter need to have to take
voltage readings at the service switchgear of an industrial facility?
Answer:
CAT III
The length of bare copper conductor in a ground ring must be buried no less than
2.5' below grade and with a length of at least:
Answer:
10 Ft
What is the voltage on the high leg in the figure?
Answer:
208 Volts
Various minimum requirements have been set forth pertaining to overcurrent
devices by the:
Answer:
NEC
What will be the center- to -center measurement for two 30 degree bins in an offset
bin with a height of 18 inches?
Answer:
9 inches
A swivel joints connection is to be made in a cable tray installation. What must be
installed?
Answer:
A flexible bonding jumper
What is the name of the connecting device shown in the diagram?
pg. 3
, Answer:
Split- bolt.
What is the voltage drop for a #8 (16.510 cmil) copper wire at 120v. 215 feet one
way and load of 39 amps?
Answer:
10.5
If a voltage source of a circuit provides 240 volts and there are 5 ohms of
resistance, how much current is in the circuit?
Answer:
48 amps
What should be done to change rotation of a 3 phase motor?
Answer:
Swap any two T leads
What instrument is used to measure current:
Answer:
Voltmeter
Which plain indicates the location of structures and equipment on a property:
Answer:
Site
Generally, the most ideal conductor is made of:
Answer:
Copper
What is the standard size system used in the United States?
Answer:
AWG
What is insulating tape?
Answer:
Non-Conductive adhesive tape
pg. 4
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