Electrician's Licensing Exam: Questions & Correct
Answers
NEC Article ______ defines breakers and fuses. Right Ans - 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. Right Ans - Annex C of NEC covers
conduit and tubing fill for conductors and fixture wire fill.
NEMA stands for National Electrical Manufacturers Association Right Ans -
True - NEMA is the acronym for National Electrical Manufacturers Association.
What does it mean when a receptacle has "NEMA 5-20R" on it? Right Ans -
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. Right Ans -
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.
Which NEC tables(s) cover(s) the fill of metal boxes? Right Ans - The fill of
metal boxes appears in NEC Tables 314.6 A and B.
NEC Article _____ address EMT. Right Ans - NEC Article 358 covers EMT.
Which NEC articles cover the installation requirements for RMC, IMC, and
EMT? Right Ans - NEC Articles 342, 344, and 358 outline the installation
requirements of RMC, IMC, and EMT.
IN NEC 2008, what does Table 370.6A cover? Right Ans - 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? Right Ans - 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. Right Ans - 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? Right Ans - NEC Article 408 covers panel board applications.
The smaller kitchen counter requiring a receptacle is _____ inches. Right Ans
- A 12in. counter requires a receptacle because it holds small appliances.
What new code is needed for protection in all habitable spaces? Right Ans -
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)
Right Ans - True, One is required, Two are suggested.
NEC Article 100 is dedicated to? Right Ans - Definitions
The main ground on a service is a(n) _____. Right Ans - Ground Rod
What does NEC Section 250-28A require? Right Ans - 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) Right Ans - True
A bonding screw is what color? Right Ans - A bonding screw is green.
A subpanel requires a bonding screw? (True or False) Right Ans - False, A
bonding screw is unneeded in a subpanel.
Name the methods of sizing bonding jumpers outlined in NEC Section 250-
28D. Right Ans - 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.
NEC Table _____ covers grounding electrode conductor sizing. Right Ans -
NEC Table 250.66
Which NEC reference identifies wire sizing and the temperature a wire can
handle in amps? Right Ans - 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. Right Ans - 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? Right Ans - Is dedicated to the
sizes of the grounding conductor
What is the NEC definition of a circuit breaker? Right Ans - A device
designed to trip when an overcurrent is detected.
NEC Section 300-13 provides information on? Right Ans - Mechanical and
Electrical continuity conductors.
What is the subject of NEC Section 250-2D? Right Ans - Bonding jumpers
______ are the subject of NEC Section 680-20. Right Ans - Electrical
installations at permanently installed pools.
Which NEC Section covers equipment grounding conductors. Right Ans -
NEC Section 250-118
Which NEC sections covers identification of equipment grounding
conductors? Right Ans - NEC Section 250-119 1-14
Which NEC Section covers ground terminal identification. Right Ans - NEC
Section 250-126
Bonding is the establishment of ______ connection between metal parts.
Right Ans - Reliable
Answers
NEC Article ______ defines breakers and fuses. Right Ans - 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. Right Ans - Annex C of NEC covers
conduit and tubing fill for conductors and fixture wire fill.
NEMA stands for National Electrical Manufacturers Association Right Ans -
True - NEMA is the acronym for National Electrical Manufacturers Association.
What does it mean when a receptacle has "NEMA 5-20R" on it? Right Ans -
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. Right Ans -
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.
Which NEC tables(s) cover(s) the fill of metal boxes? Right Ans - The fill of
metal boxes appears in NEC Tables 314.6 A and B.
NEC Article _____ address EMT. Right Ans - NEC Article 358 covers EMT.
Which NEC articles cover the installation requirements for RMC, IMC, and
EMT? Right Ans - NEC Articles 342, 344, and 358 outline the installation
requirements of RMC, IMC, and EMT.
IN NEC 2008, what does Table 370.6A cover? Right Ans - 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? Right Ans - 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. Right Ans - 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? Right Ans - NEC Article 408 covers panel board applications.
The smaller kitchen counter requiring a receptacle is _____ inches. Right Ans
- A 12in. counter requires a receptacle because it holds small appliances.
What new code is needed for protection in all habitable spaces? Right Ans -
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)
Right Ans - True, One is required, Two are suggested.
NEC Article 100 is dedicated to? Right Ans - Definitions
The main ground on a service is a(n) _____. Right Ans - Ground Rod
What does NEC Section 250-28A require? Right Ans - 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) Right Ans - True
A bonding screw is what color? Right Ans - A bonding screw is green.
A subpanel requires a bonding screw? (True or False) Right Ans - False, A
bonding screw is unneeded in a subpanel.
Name the methods of sizing bonding jumpers outlined in NEC Section 250-
28D. Right Ans - 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.
NEC Table _____ covers grounding electrode conductor sizing. Right Ans -
NEC Table 250.66
Which NEC reference identifies wire sizing and the temperature a wire can
handle in amps? Right Ans - 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. Right Ans - 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? Right Ans - Is dedicated to the
sizes of the grounding conductor
What is the NEC definition of a circuit breaker? Right Ans - A device
designed to trip when an overcurrent is detected.
NEC Section 300-13 provides information on? Right Ans - Mechanical and
Electrical continuity conductors.
What is the subject of NEC Section 250-2D? Right Ans - Bonding jumpers
______ are the subject of NEC Section 680-20. Right Ans - Electrical
installations at permanently installed pools.
Which NEC Section covers equipment grounding conductors. Right Ans -
NEC Section 250-118
Which NEC sections covers identification of equipment grounding
conductors? Right Ans - NEC Section 250-119 1-14
Which NEC Section covers ground terminal identification. Right Ans - NEC
Section 250-126
Bonding is the establishment of ______ connection between metal parts.
Right Ans - Reliable
