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IEC Electrical Engineering Final Exam Study Guide: Questions and Answers, Exams of Electrical and Electronics Engineering

Princeton UniversityElectrical and Electronics Engineering

This comprehensive study guide provides a valuable resource for students preparing for their final exam in iec electrical engineering. it features a range of multiple-choice questions covering key concepts and practical applications, along with their corresponding correct answers. the guide is designed to aid in exam preparation by reinforcing understanding and identifying areas needing further review. the questions cover topics such as electrical grounding, circuit breakers, voltage drop calculations, conduit installation, wire sizing, and safety regulations. This resource is particularly useful for students seeking to solidify their knowledge and improve their performance on the final exam.

Typology: Exams

2024/2025

Available from 04/18/2025

DOCSHUB
DOCSHUB 🇺🇸

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IEC Electrical final exam study guide with
correct answers
an electrical grounding conductor is permitted to be what color - correct answersGreen
which of the following types of current travel through a circuit breaker - correct answersshort
circuit, ground fault, overload
explanatory material is represented through the code using - correct answersinformational
note
opposition to current flow is - correct answersresistance
what is the voltage drop on a 120 volt circuit? the circuit uses 12 awg copper conductors and
has a load of 20 Amps. there is a resitace of 100 feet from the panel to the load (use K=12) -
correct answers7.35 Volts
a flush mounted well light is located in the corner of a sidewalk at a house. The side walk is 3
in thick and schedule 40 PVC will be installed for the power. this 20 amp, 120 v circuit is GFCI
protected. in inches what is the min depth from top of conduit to top of sidewalk. - correct
answers6 inches
horizontal runs of trade size 3 schedule 40 PVC must be supported at what ft intervals -
correct answers6 ft
the ampacity of a number 10 THHN/THWN copper wire in a conduit with 7 other current
carrying conductors is how many amps - correct answers28 AMP
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Download IEC Electrical Engineering Final Exam Study Guide: Questions and Answers and more Exams Electrical and Electronics Engineering in PDF only on Docsity!

IEC Electrical final exam study guide with

correct answers

an electrical grounding conductor is permitted to be what color - correct answersGreen which of the following types of current travel through a circuit breaker - correct answersshort circuit, ground fault, overload explanatory material is represented through the code using - correct answersinformational note opposition to current flow is - correct answersresistance what is the voltage drop on a 120 volt circuit? the circuit uses 12 awg copper conductors and has a load of 20 Amps. there is a resitace of 100 feet from the panel to the load (use K=12) - correct answers7.35 Volts a flush mounted well light is located in the corner of a sidewalk at a house. The side walk is 3 in thick and schedule 40 PVC will be installed for the power. this 20 amp, 120 v circuit is GFCI protected. in inches what is the min depth from top of conduit to top of sidewalk. - correct answers6 inches horizontal runs of trade size 3 schedule 40 PVC must be supported at what ft intervals - correct answers6 ft the ampacity of a number 10 THHN/THWN copper wire in a conduit with 7 other current carrying conductors is how many amps - correct answers28 AMP

the rating of a branch circuit is determined by its - correct answersover-current protective device (fuse or current breaker) find the minimum wire size to limit the voltage drop 5%. you will run 300 ft of type NM-B cable, to a 120 volt, 1/2 HP 8- amp load. - correct answers a circuit installed in EMT between a 2 pole circuit breaker and a load. if the hots are touched together in a junction box somewhere in the pipe. run, this is what type of condition - correct answersshort circuit In a dwelling at least _____ ampere branch circuit must be provided for bathroom receptacles. - correct answers A luminaire installed under a covered breeze way would have to be marked as suitable for a ________ location. - correct answersdamp A ________ amp single hole snap switch is permitted to be used to control a lighting circuit that pulls 15 amps - correct answers20,15, How many complete pieces of cable 8 3/8 inches in length can be cut from a 15 foot length of cable? - correct answers A underground conductor can be marked with _______________ tape. - correct answerspink If a 95 watt lamp operated for 11 hours, the utility bill will be ________ kWh. - correct answers1.

Where 12-2 type MC cable is run from a branch circuit the maximum spacing permitted between support clips or straps is _______ feet. - correct answers Section __________ in the NEC provides clearances in front of electrical equipment. - correct answers110. A ________ amp circuit breaker is the largest that can be installed on a 12 AWG copper circuit conductor. The circuit is connected to several receptacles. - correct answers What is the ampacity of each conductor where 4 current carrying 500 KCMILTHHN/THWN copper conductors are run in a conduit that is located in a 125 degree Fahrenheit ambient temperature location - correct answers Underground feeder cable in PVC under a building must be installed atleast ___________ inches deep. - correct answers Switching terminal screws on switches are always connected to the ________ conductor - correct answersungrounded You timed your helper and it took him an hour and a half to dig a 10 foot trench. You get another helper who will work at the same pace. How much time will it take both workers to dig an additional 80 feet. - correct answers3 hours and 36 minuetes Which of the following is permitted to be connected to either or both of the two 20 amp small appliance circuits required for the kitchen and dinning room areas of a dwelling. - correct answersclock-outlet A 10,000 square foot dwelling has a hallway that is 80 feet in length. The minimum number of recepticals required by the NEC in the hallway is __________ - correct answers

The minimum size service disconnect for a single family dwelling with a computed load of 10 KVA is _______ apms. - correct answers Two 10 AWG circuit conductors and a 10 AWG equipment grounding conductor that enter through one conduit and exit through another conduit can be spliced with wire nuts inside of an LB condulit if the LB is marked with a cubic inch capacity of at least _________ cubic inches. - correct answers12. The shortest bending radius for 12-2 type MC cable is _______ times the external diameter of the metal sheeth. - correct answers How many number 10 AWG conductors may be installed in a 4 11/16 x 2 1.8 square box that already contains six 12 AWG conductors? - correct answers