Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Textbook Question
Chapter 11, Problem 7R
Who is to select the entry ceiling luminaire? ____
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Question 9
An FET is a
current
voltage
O voltage and current
__-controlled device.
oleg is using a multimeter to test the circuit branch he's just installed. after turning off the current to the circuit at the service panel, he'll first attach one probe to the ----- in the end of the run. a. black wire b. box c. white wire d. ground wire
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Chapter 11 Solutions
Electrical Wiring Residential
Ch. 11 - How many circuit wires enter the entry ceiling...Ch. 11 - Assuming that an outlet box for the entry ceiling...Ch. 11 - How many receptacle outlets and lighting outlets...Ch. 11 - Outdoor luminaires directly exposed to the weather...Ch. 11 - Prob. 5RCh. 11 - From left to right, facing the switches, what do...Ch. 11 - Who is to select the entry ceiling luminaire? ____Ch. 11 - When installing the wiring for a doorjamb switch,...Ch. 11 - The following layout is for Lighting Circuit A15,...
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- In order to wire a post light, a homeowner purchased some single-conductor cable that was marked as suitable for direct burial in the ground. A separate equipment grounding conductor to the post light was not carried. Instead, the bottom of the metal post, buried 2 ft (0.6 m) into the ground, was used as a ground for the post light. The inspector “red tagged” (turned down) the installation. Who is right—the homeowner or the electrical inspector? Explain.arrow_forwardA device used in kitchen serving hotels dining rooms club houses and restaurants is__________. a.) Grease basin b.) Yard basin c.) Garage basin d.) Oil catch basinarrow_forwardThe Code places a maximum open-circuit voltage on lighting equipment in oron homes. This maximum voltage is 600 750 1000. (Circle the correctanswer.) Where in the NEC is this voltage maximum referenced?arrow_forward
- If an electrical system operates at a potential higher than 600 volts, the nonmetallic conduit must be encased in at least_of concrete. A. 1 inch B. 2 inches C. 4 inches D. 6 inchesarrow_forwardAn open in one of the heated rear window grid elements can be repaired by ______. a. pealing the heat grid off the glass with a heat gun and installing a new grid element b. applying a thin strip of a repair compound to the damaged area c. bridging the damaged area with rosin core solder d. replacing the window glassarrow_forward2. Imagine that you're asked to install an auxiliary grounding electrode at the base of a lighting pole in aparking lot. This auxiliary grounding electrode will be connected to theA. lighting pole's electrical service equipment grounding conductor.B. electrical service's grounding electrode conductor.C. next lighting pole's auxiliary grounding electrode.D. lighting pole's neutral conductor.arrow_forward
- Food-waste disposers include a small manual reset button to restart the motor if it overheats and goes off-line due to prolonged use, something falls into the unit and jams it, or another cause. This manual reset provides the ____ protection required by Code for this type of appliance. A. short-circuitB. ground-faultC. overloadD. all of thesearrow_forwardQUESTION 5 A duplex receptacle is installed on a 4-inch square raised metal cover and mounted on a 4-inch square metal box.If the grounding terminal of the receptacle is connected to the grounded metal box, which of the following requirements would also apply to the installation of the duplex receptacle? a It must be secured by at least two screws. b The single 6/32 screw holding it in the cover must be tight. c It must be secured directly to the 4 inch square box. d It is not permitted to be installed in raised covers.arrow_forwardQUESTION 9 When a ground wire is connected to an interior gas piping system and the underground portion of the gas pipe into the building is plastic, which of the following is (or are) true? a A.This would be approved by code as the gas pipe is only being bonded to the electrical system. b B.This installation would be approved by code, as the gas pipe is not a grounding electrode. c C.Both A and B d D.Neither A nor Barrow_forward
- 4.a. The ___ calculated load is rarely placed on an electrical system.A. optionalB. standardC. total 4.b. What's the primary disadvantage of using copper conductors?A. CostB. AvailabilityC. Weight 4.c. You're evaluating the components of a multioccupancy building that won't have an on-site employee. Tobe compliant with the NEC, each occupant will need to have access to their ownA. service-disconnecting means.B. service conductor.C. cable attachment point.D. emergency fire water-pump disconnect.arrow_forwardAccording to the NEC, the term _______ means "recognized as suitable for a specific purpose described in the code." A. labeled B. listed C. approved D. identifiedarrow_forward1)The NEC Style Manual indicates that if a term in the NEC appears in more than two articles, it qualifies for a definition in which of the following. a) The articles where the term appears b) Article 90 c) Article 100 d) Table of Contents 2)Definitions of terms related to grounding and bonding and used only in Article 250 are located in ________.a) Article 100 b) Article 200 c) Chapter 9 d) Section 250.2 3)As a general rule, when installing ground rod electrodes, two must be installed always unless a single ground rod provides not more than 25 ohms’ resistance to ground. a) True b) Falsearrow_forward
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