ELECTRICAL WIRING:RESIDENTAL-6 PLANS
18th Edition
ISBN: 9781305098329
Author: MULLIN
Publisher: CENGAGE L
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Textbook Question
Chapter 5, Problem 24R
When metal toggle switchplates are used with nonmetallic boxes, the faceplate must be grounded according to 404.9(B). How is this accomplished? __________
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The wording that I am running into with questions such as "The number of conductors required to be installed between three-way and four-way switches is " is confusing. The text is not expalining this in a way that I am understanding anything other than grounding conductor, which is optional unless I am using a metal box. So what type of "conductor" is beng discussed?
8. Connect the Electronic VOM, set to the ammeter function on the 15mAdc range,between points A and D.9. Close switch S1. Measure current IAB.
IAB = 19.5 mAdc
10. Measure current IAD flowing through resistor R1.
IAD = 14.8 mAdcAre currents IAB and IAD entering or leaving point A? __________
Is the sum of currents IAB and IAD equal to total current IT? __________Is the current IAB entering or leaving a junction point B? __________
The circuit breaker cubicles illustrated in your reading material each contain____circuit breakers.
A. Two B. Three C. Four D. Six
Chapter 5 Solutions
ELECTRICAL WIRING:RESIDENTAL-6 PLANS
Ch. 5 - The identified grounded circuit conductor must be...Ch. 5 - Explain how lighting switches are rated.Ch. 5 - Prob. 4RCh. 5 - Prob. 5RCh. 5 - To control a lighting load from one control point,...Ch. 5 - Prob. 7RCh. 5 - Complete the connections in the following...Ch. 5 - Complete the connections for the diagram....Ch. 5 - A three-way switch may be compared to a _____...Ch. 5 - Prob. 11R
Ch. 5 - Complete the connections in the following...Ch. 5 - When connecting 4-way switches, care must be taken...Ch. 5 - Show the connections for a ceiling outlet that is...Ch. 5 - Match the following switch types with the correct...Ch. 5 - When connecting single-pole, 3-way, and 4-way...Ch. 5 - What section of the Code emphasizes the fact that...Ch. 5 - If you had to install an underground 3-wire feeder...Ch. 5 - Is it always necessary to attach the bare...Ch. 5 - List the methods by which an equipment grounding...Ch. 5 - When two nonmetallic-sheathed cables (Type NM-B)...Ch. 5 - Define an equipment grounding conductor.Ch. 5 - When metal toggle switchplates are used with...Ch. 5 - Does the Code permit the ampacity of switch legs...Ch. 5 - Prob. 26RCh. 5 - Prob. 27R
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- The following problems pertain to luminaires in clothes closets. a. Does the Code permit bare incandescent lamps to be installed in porcelain key-less or porcelain pull-chain lampholders? ________________ b. Does the Code permit bare fluorescent lamp luminaires to be installed? ________________ c. Does the Code permit pendant lampholders to be installed? ________________ d. What is the minimum clearance from the storage area to surface-mounted incandescent luminaires? ________________ e. What is the minimum clearance from the storage area to surface-mounted fluorescent luminaires? ________________ f. What is the minimum distance between recessed incandescent or recessed fluorescent luminaires and the storage area? ________________ g. Define the storage area. ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ h. If a clothes hanging rod is installed where there is access from both sides, such as might be found in a large walk-in clothes closet, define the storage area under that rod. ___________________________________ ___________________________________arrow_forwardDoes the NEC allow metal raceways to be used with nonmetallic boxes? Yes __________ No __________, NEC __________arrow_forwardHow many circuit wires enter the entry ceiling box? How many equipment grounding conductors enter the entry ceiling box?arrow_forward
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