Electrician's Licensing Exam (Common Electrician's
Licensing Exam Questions) with 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.
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.
,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.
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.
Which NEC Section covers equipment grounding conductors. - ANSWER NEC
Section 250-118
Which NEC sections covers identification of equipment grounding conductors? -
ANSWER NEC Section 250-119 1-14
Which NEC Section covers ground terminal identification. - ANSWER NEC Section
250-126
Bonding is the establishment of ______ connection between metal parts. - ANSWER
Reliable
NEC Section 250-134 provides information on what topic? - ANSWER Equipment
fastened or connection between metal parts.
Equipment grounding conductor _____ is (are) discussed in NEC Section 250-130. -
ANSWER Connections
NEC Section 250-118 states that a grounded conduct must run _____ flexible
conduit. - ANSWER inside
NEC Section _____ oversees bonding of flexible type conduit. - ANSWER NEC
Section 250.118(5)
Which NEC article covers cable trays? - ANSWER NEC Article 392
What is the proper procedure for bonding a motor conduit with metal flex? -
ANSWER A bonding jumper should be installed inside or outside raceway within 6ft.
of attachment. (NEC 250.118)
Threaded pipe can be used for bonding purposes? (True or False) - ANSWER True
(NEC 250.92B)
Shoulder fittings with locknuts are allowable as bonding devices? (True or False) -
ANSWER True (NEC 250.92B)
What kind of information does NEC Section 250-66 cover? - ANSWER Covers the
sizes of alternating current grounding electrode conductors.
NEC Section 250-102 is devoted to equipment _____. - ANSWER Equipment
Bonding Jumpers
Give guidelines for using sheet metal screws as bonding agents. - ANSWER
Electricians can use sheet metal screws for bonding when those screws are green
and have hexagonal heads (NEC 250.8), but it is generally considered unwise.
Licensing Exam Questions) with 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.
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.
,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.
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.
Which NEC Section covers equipment grounding conductors. - ANSWER NEC
Section 250-118
Which NEC sections covers identification of equipment grounding conductors? -
ANSWER NEC Section 250-119 1-14
Which NEC Section covers ground terminal identification. - ANSWER NEC Section
250-126
Bonding is the establishment of ______ connection between metal parts. - ANSWER
Reliable
NEC Section 250-134 provides information on what topic? - ANSWER Equipment
fastened or connection between metal parts.
Equipment grounding conductor _____ is (are) discussed in NEC Section 250-130. -
ANSWER Connections
NEC Section 250-118 states that a grounded conduct must run _____ flexible
conduit. - ANSWER inside
NEC Section _____ oversees bonding of flexible type conduit. - ANSWER NEC
Section 250.118(5)
Which NEC article covers cable trays? - ANSWER NEC Article 392
What is the proper procedure for bonding a motor conduit with metal flex? -
ANSWER A bonding jumper should be installed inside or outside raceway within 6ft.
of attachment. (NEC 250.118)
Threaded pipe can be used for bonding purposes? (True or False) - ANSWER True
(NEC 250.92B)
Shoulder fittings with locknuts are allowable as bonding devices? (True or False) -
ANSWER True (NEC 250.92B)
What kind of information does NEC Section 250-66 cover? - ANSWER Covers the
sizes of alternating current grounding electrode conductors.
NEC Section 250-102 is devoted to equipment _____. - ANSWER Equipment
Bonding Jumpers
Give guidelines for using sheet metal screws as bonding agents. - ANSWER
Electricians can use sheet metal screws for bonding when those screws are green
and have hexagonal heads (NEC 250.8), but it is generally considered unwise.
