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