RESIDENTIAL WIRING FINAL EXAM REVIEW QUESTIONS WITH VERIFIED ANSWERS[GUARANTEED PASS]

RESIDENTIAL WIRING FINAL EXAM REVIEW
QUESTIONS WITH VERIFIED
ANSWERS[GUARANTEED PASS]
A(n) _______ is the circuit conductors between the final overcurrent device and the outlets.

open circuit

branch circuit

feeder circuit

service conductor - Correct Answers -branch circuit



The circuit conductors between the service equipment and the final branch circuit overcurrent
protection device is a(n)

open circuit

branch circuit

feeder circuit

service conductor - Correct Answers -feeder circuit



When doing service entrance calculations, 1 volt-ampere equals

1 joule

1 watt

1 ohm

1 mil - Correct Answers -1 watt



Which of the following is not permitted to be connected to a small appliance branch circuit?

Refrigerator

Electric clock

Gas stove

,Kitchen lighting fixture - Correct Answers -Gas stove



If cables are bundled together for more than 24 inches and the total number of current carrying
conductors exceeds ____________, the ampacity of the conductors must be derated.

2

3

4

5 - Correct Answers -3



When doing a standard service entrance calculation, if a residence has 4 fixed appliances, a
demand factor of _______% is applied to the total load of these appliances

50

75

80

100 - Correct Answers -75



When doing a standard service entrance calculation and applying the demand factor to the total
load of the general lighting load, the small appliance circuits, and the laundry circuit, the first
_____ volt-amperes are computed at 100%

2000

2500

3000

4000 - Correct Answers -3000



A 200 ampere rated panel is designed and manufactured to accommodate ____ circuits

30

40

, 42

any of the above - Correct Answers -any of the above



Which of the following loads does not require a grounded circuit conductor?

2Fwires,F120V

3Fwires,F120/240V

2Fwires,F240V

noneFofFtheFaboveF-FCorrectFAnswersF-2Fwires,F240V



AllFofFtheFfollowingFtypesFofFbranchFcircuitsFareFfoundFinFresidentialFwiringFexcept:

generalFlighting

laundry

largeFappliance

smallFapplianceF-FCorrectFAnswersF-largeFappliance



AccordingFtoFsectionF310.15(B)(7)FinFtheFNEC,FtheFminimumFconductorFsizeFforFaF200-
ampFresidentialFserviceFentranceFisF______FCuForF_______Al

4FAWG;F2FAWG

3FAWG;F1FAWG

2FAWG;F1/0FAWG

2/0FAWG;F4/0FAWGF-FCorrectFAnswersF-2/0FAWG;F4/0FAWG



AccordingFtoFsectionF310.15(B)(7)FinFtheFNEC,FtheFminimumFconductorFsizeFforFaF300-
ampFresidentialFserviceFentranceFisF______FCuForF_______Al

2FAWG;F1/0FAWG

2/0FAWG;F4/0FAWG

250Fkcmil;F350Fkcmil