Electrician's Licensing Exam Questions with Expert
Solutions
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
Solutions
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
