19th Edition

ISBN: 9781337116213

Author: MULLIN

Publisher: CENGAGE L

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The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechan…

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Textbook Question

Chapter 4, Problem 40R

The recessed fluorescent luminaires installed in the ceiling of the recreation room of this residence are connected with trade size ⅜ flexible metal conduit. These flexible connections are commonly referred to as fixture whips. Does the flexible metal conduit provide adequate grounding for the luminaires, or must a separate equipment grounding conductor be installed? ________________

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Chapter 4 Solutions

ELECTRICAL WIRING:RESIDENT.-TEXT (PB)

Ch. 4 - The largest size solid conductor generally...Ch. 4 - What is the minimum branch-circuit wire size that...Ch. 4 - What exceptions, if any, are there to the answer...Ch. 4 - What determines the ampacity of a wire?Ch. 4 - What unit of measurement is used for the diameter...Ch. 4 - What unit of measurement is used for the...Ch. 4 - What is the voltage rating of the conductors in...Ch. 4 - Indicate the allowable ampacity of the following...Ch. 4 - Prob. 9R Ch. 4 - What are the colors of the conductors in...

Ch. 4 - For nonmetallic-sheathed cable, may the...Ch. 4 - Prob. 12R Ch. 4 - Under what condition may nonmetallic-sheathed...Ch. 4 - a. What is the maximum distance permitted between...Ch. 4 - Prob. 15R Ch. 4 - Prob. 16R Ch. 4 - Prob. 17R Ch. 4 - Prob. 18R Ch. 4 - Prob. 19R Ch. 4 - Circle the correct answer to the following...Ch. 4 - When running Type NM cable through a bored hole in...Ch. 4 - Where is the main service-entrance panel located...Ch. 4 - Is it permitted to use flexible metal conduit over...Ch. 4 - Liquidtight flexible metal conduit may serve as a...Ch. 4 - It is permissible for an electrician to connect...Ch. 4 - Terminals of switches and receptacles marked...Ch. 4 - Wire connectors marked AL/CU are suitable for use...Ch. 4 - A wire connector bearing no marking or reference...Ch. 4 - When Type NM cable is run through a floor, it must...Ch. 4 - When nonmetallic-sheathed cables are bunched or...Ch. 4 - In diagrams A and B, nonmetallic-sheathed cable is...Ch. 4 - The marking on the outer jacket of a...Ch. 4 - A 120-volt branch circuit supplies a resistive...Ch. 4 - In problem 35, it is desired to keep the voltage...Ch. 4 - Prob. 37R Ch. 4 - The allowable ampacity of a 4 AWG THHN from Table...Ch. 4 - If, because of some obstruction in a wall space,...Ch. 4 - The recessed fluorescent luminaires installed in...Ch. 4 - Prob. 41R Ch. 4 - What size overcurrent device protects the...Ch. 4 - May the 20-ampere small-appliance branch circuits...Ch. 4 - A 30-ampere branch circuit is installed for an...Ch. 4 - In many areas, metal framing members are being...Ch. 4 - Are set screwtype connectors permitted to be used...Ch. 4 - Most armored cable today has 90C conductors. What...Ch. 4 - If you saw two different types of SE cables, how...Ch. 4 - Circle the correct answer defining the type of...

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