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.
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.
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.
The smaller kitchen counter requiring a receptacle is _____ inches. - ANSWER A
12in. counter requires a receptacle because it holds small appliances.
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
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 main bonding screw? (True or False) - ANSWER False, A
main bonding screw is unneeded in a subpanel.
NEC Table _____ covers grounding electrode conductor sizing. - ANSWER NEC
Table 250.66
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 equipment grounding conductor
What is the NEC definition of a circuit breaker? - ANSWER A device designed to trip
when an overcurrent is detected.
, What is the subject of NEC Section 250-2D? - ANSWER Bonding jumpers
______ is the subject of NEC Section 680.20. - ANSWER Electrical installations at
permanently installed pools.
Which NEC Section covers types of equipment grounding conductors. - ANSWER
NEC Section 250.118
Which NEC sections covers identification of equipment grounding conductors? -
ANSWER NEC Section 250.119
Which NEC Section covers ground terminal identification on wiring devices? -
ANSWER NEC Section 250.126
True or False.
The definition of bonded is: the connection between the grounded circuit conductor
and the equipment grounding conductor, or the supply side bonding jumper, or both,
at the service. - ANSWER False. Article 100
NEC Section 250.142 provides information on what topic? - ANSWER Use of
Grounded circuit conductor for grounding equipment.
NEC Section Table 300.5 states that the minimum cover required for a direct burial
cable is _______ inches - ANSWER 24 inches.
Which NEC article covers cable trays? - ANSWER NEC Article 392
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.
Which NEC article covers service drops? - ANSWER NEC Article 230
According to NEC, trees are approved to support service conductors. (True or False)
- ANSWER False, NEC does not allow vegetation to support service conductors.
Above sidewalks accessible by pedestrians, a service drop not over 600V must be at
least _____ft. high. - ANSWER 10ft.
What is the service drop height, in feet, of a 200-amp service crossing residential
property? - ANSWER 12ft.
The required clearance for a 400-amp service drop across a major roadway is? -
ANSWER 18ft.
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.
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.
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.
The smaller kitchen counter requiring a receptacle is _____ inches. - ANSWER A
12in. counter requires a receptacle because it holds small appliances.
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
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 main bonding screw? (True or False) - ANSWER False, A
main bonding screw is unneeded in a subpanel.
NEC Table _____ covers grounding electrode conductor sizing. - ANSWER NEC
Table 250.66
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 equipment grounding conductor
What is the NEC definition of a circuit breaker? - ANSWER A device designed to trip
when an overcurrent is detected.
, What is the subject of NEC Section 250-2D? - ANSWER Bonding jumpers
______ is the subject of NEC Section 680.20. - ANSWER Electrical installations at
permanently installed pools.
Which NEC Section covers types of equipment grounding conductors. - ANSWER
NEC Section 250.118
Which NEC sections covers identification of equipment grounding conductors? -
ANSWER NEC Section 250.119
Which NEC Section covers ground terminal identification on wiring devices? -
ANSWER NEC Section 250.126
True or False.
The definition of bonded is: the connection between the grounded circuit conductor
and the equipment grounding conductor, or the supply side bonding jumper, or both,
at the service. - ANSWER False. Article 100
NEC Section 250.142 provides information on what topic? - ANSWER Use of
Grounded circuit conductor for grounding equipment.
NEC Section Table 300.5 states that the minimum cover required for a direct burial
cable is _______ inches - ANSWER 24 inches.
Which NEC article covers cable trays? - ANSWER NEC Article 392
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.
Which NEC article covers service drops? - ANSWER NEC Article 230
According to NEC, trees are approved to support service conductors. (True or False)
- ANSWER False, NEC does not allow vegetation to support service conductors.
Above sidewalks accessible by pedestrians, a service drop not over 600V must be at
least _____ft. high. - ANSWER 10ft.
What is the service drop height, in feet, of a 200-amp service crossing residential
property? - ANSWER 12ft.
The required clearance for a 400-amp service drop across a major roadway is? -
ANSWER 18ft.
