1
Electrician's Licensing Exam Questions with
Correct Answers | Updated (100% Correct
Answers)
NEC Article ______ defines breakers and fuses. Answer: According to
NEC Article 100, a device that opens and closes a circuit by
nonautomatic means automatically closes for a predetermined
overcurrent.
Annex _____ of NEC covers conduit fill. Answer: Annex C of NEC
covers conduit and tubing fill for conductors and fixture wire fill.
NEMA stands for National Electrical Manufacturers Association
Answer: True - NEMA is the acronym for National Electrical
Manufacturers Association.
What does it mean when a receptacle has "NEMA 5-20R" on it?
Answer: A receptacle with NEMA 5-20R on it has an amperes rating
of 20, will take a NEMA-5-15P or NEMA-5-20P plug, and has a
voltage rating of 125.
NEC Tables 310-10 through 310-21 provide information on. Answer:
The sizes of copper and aluminum wire, as well as the coating of
wire that has fewer than three current carrying wires in a cable or
conduit or that is buried in the earth.
© 2025 All rights reserved
,2
Which NEC tables(s) cover(s) the fill of metal boxes? Answer: The fill
of metal boxes appears in NEC Tables 314.6 A and B.
NEC Article _____ address EMT. Answer: NEC Article 358 covers EMT.
Which NEC articles cover the installation requirements for RMC,
IMC, and EMT? Answer: NEC Articles 342, 344, and 358 outline the
installation requirements of RMC, IMC, and EMT.
IN NEC 2008, what does Table 370.6A cover? Answer: Shows in two
columns (milimeters and inches), how many wires in trade size you
can place in a box.
What NEC table would you go to to find trade size of conduit and
raceway size? Answer: Chapter 9, Table 4 outlines trade size of
conduit as well as raceway size.
NEC Articles _____ and _____ covers metallic and non-metallic
raceways in buildings. Answer: NEC Article 386 covers metallic or
metal raceway; NEC Article 388 covers PVC pipe.
The Panel Board requirements for Application in Construction
appear in NEC Article? Answer: NEC Article 408 covers panel board
applications.
The smaller kitchen counter requiring a receptacle is _____ inches.
Answer: A 12in. counter requires a receptacle because it holds small
appliances.
© 2025 All rights reserved
,3
What new code is needed for protection in all habitable spaces?
Answer: According to new codes, ARC fault protection is needed
many additional parts of the house.
A 12-foot hallway requires one receptacle to meet code. (True or
False) Answer: True, One is required, Two are suggested.
NEC Article 100 is dedicated to? Answer: Definitions
The main ground on a service is a(n) _____. Answer: Ground Rod
What does NEC Section 250-28A require? Answer: A main bonding
jumper and a system bonding jumper.
NEC section 250-28A provides information on what material can be
used for a main bonding jumper. (True or False) Answer: True
A bonding screw is what color? Answer: A bonding screw is green.
A subpanel requires a bonding screw? (True or False) Answer: False,
A bonding screw is unneeded in a subpanel.
Name the methods of sizing bonding jumpers outlined in NEC
Section 250-28D. Answer: 1. Bonding jumper is sized not less than
12.5% of the largest phase conductor.
2. Based on the largest ungrounded service conductor.
3. Based on the largest sum of the service conductors.
© 2025 All rights reserved
, 4
NEC Table _____ covers grounding electrode conductor sizing.
Answer: NEC Table 250.66
Which NEC reference identifies wire sizing and the temperature a
wire can handle in amps? Answer: NEC Tables Annex C1 and C2
identify both wire sizing and the temperature a wire can handle in
amps.
Define a grounding system according to NEC. Answer: A gounding
system is connected to the ground or to a conductive body that
extends the ground connection.
What is the topic of NEC Section 250-122? Answer: Is dedicated to
the sizes of the grounding conductor
What is the NEC definition of a circuit breaker? Answer: A device
designed to trip when an overcurrent is detected.
NEC Section 300-13 provides information on? Answer: Mechanical
and Electrical continuity conductors.
What is the subject of NEC Section 250-2D? Answer: Bonding
jumpers
______ are the subject of NEC Section 680-20. Answer: Electrical
installations at permanently installed pools.
© 2025 All rights reserved
Electrician's Licensing Exam Questions with
Correct Answers | Updated (100% Correct
Answers)
NEC Article ______ defines breakers and fuses. Answer: According to
NEC Article 100, a device that opens and closes a circuit by
nonautomatic means automatically closes for a predetermined
overcurrent.
Annex _____ of NEC covers conduit fill. Answer: Annex C of NEC
covers conduit and tubing fill for conductors and fixture wire fill.
NEMA stands for National Electrical Manufacturers Association
Answer: True - NEMA is the acronym for National Electrical
Manufacturers Association.
What does it mean when a receptacle has "NEMA 5-20R" on it?
Answer: A receptacle with NEMA 5-20R on it has an amperes rating
of 20, will take a NEMA-5-15P or NEMA-5-20P plug, and has a
voltage rating of 125.
NEC Tables 310-10 through 310-21 provide information on. Answer:
The sizes of copper and aluminum wire, as well as the coating of
wire that has fewer than three current carrying wires in a cable or
conduit or that is buried in the earth.
© 2025 All rights reserved
,2
Which NEC tables(s) cover(s) the fill of metal boxes? Answer: The fill
of metal boxes appears in NEC Tables 314.6 A and B.
NEC Article _____ address EMT. Answer: NEC Article 358 covers EMT.
Which NEC articles cover the installation requirements for RMC,
IMC, and EMT? Answer: NEC Articles 342, 344, and 358 outline the
installation requirements of RMC, IMC, and EMT.
IN NEC 2008, what does Table 370.6A cover? Answer: Shows in two
columns (milimeters and inches), how many wires in trade size you
can place in a box.
What NEC table would you go to to find trade size of conduit and
raceway size? Answer: Chapter 9, Table 4 outlines trade size of
conduit as well as raceway size.
NEC Articles _____ and _____ covers metallic and non-metallic
raceways in buildings. Answer: NEC Article 386 covers metallic or
metal raceway; NEC Article 388 covers PVC pipe.
The Panel Board requirements for Application in Construction
appear in NEC Article? Answer: NEC Article 408 covers panel board
applications.
The smaller kitchen counter requiring a receptacle is _____ inches.
Answer: A 12in. counter requires a receptacle because it holds small
appliances.
© 2025 All rights reserved
,3
What new code is needed for protection in all habitable spaces?
Answer: According to new codes, ARC fault protection is needed
many additional parts of the house.
A 12-foot hallway requires one receptacle to meet code. (True or
False) Answer: True, One is required, Two are suggested.
NEC Article 100 is dedicated to? Answer: Definitions
The main ground on a service is a(n) _____. Answer: Ground Rod
What does NEC Section 250-28A require? Answer: A main bonding
jumper and a system bonding jumper.
NEC section 250-28A provides information on what material can be
used for a main bonding jumper. (True or False) Answer: True
A bonding screw is what color? Answer: A bonding screw is green.
A subpanel requires a bonding screw? (True or False) Answer: False,
A bonding screw is unneeded in a subpanel.
Name the methods of sizing bonding jumpers outlined in NEC
Section 250-28D. Answer: 1. Bonding jumper is sized not less than
12.5% of the largest phase conductor.
2. Based on the largest ungrounded service conductor.
3. Based on the largest sum of the service conductors.
© 2025 All rights reserved
, 4
NEC Table _____ covers grounding electrode conductor sizing.
Answer: NEC Table 250.66
Which NEC reference identifies wire sizing and the temperature a
wire can handle in amps? Answer: NEC Tables Annex C1 and C2
identify both wire sizing and the temperature a wire can handle in
amps.
Define a grounding system according to NEC. Answer: A gounding
system is connected to the ground or to a conductive body that
extends the ground connection.
What is the topic of NEC Section 250-122? Answer: Is dedicated to
the sizes of the grounding conductor
What is the NEC definition of a circuit breaker? Answer: A device
designed to trip when an overcurrent is detected.
NEC Section 300-13 provides information on? Answer: Mechanical
and Electrical continuity conductors.
What is the subject of NEC Section 250-2D? Answer: Bonding
jumpers
______ are the subject of NEC Section 680-20. Answer: Electrical
installations at permanently installed pools.
© 2025 All rights reserved
