EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN: 9781337516549
Author: Simmons
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 18, Problem 5R
To determine
Explain whether the two empty conduits of trade size
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TOPIC: Power Systems, Power Plants & IlluminationINSTRUCTIONS:- Answer in this format: Given, Illustration, Required Conversion, Solution, Final Answer.- Step-by-step solution, do not skip even simple calculations to avoid confusion.- If answered in written form, make sure it is readable.PROBLEM:In hazardous locations, the use of non-metallic conduit shall be permitted provided it is buried NOT less than ___________ blow the earth level.
400 mm
600 mm
1000 mm
500 mm
Explain each option & Choose the correct option.
4) The _ calculated load is rarely placed on an electrical system.A. optionalB. standardC. total
5) What's the primary disadvantage of using copper conductors?A. CostB. AvailabilityC. Weight
6) You're evaluating the components of a multioccupancy building that won't have an on-site employee. To be 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
..
f.1. Since the footing or foundation is generally part of the grounding electrode system, the _______electrode is one of the first electrodes installed.A. metal water pipeB. plateC. concrete-encasedD. ground ringf.2. When you're connecting the grounding electrode conductor to a metal water pipe as it enters a building,the connection must be made within _______ feet of the pipe's entrance to the building.A. 10B. 5C. 15D. 7f.3. Which National Electrical Code table is used for sizing grounding electrode conductors?A. Table 250.102(C)(1)B. Table 250.66C. Table 250.122D. Table 250.118(6)(a)
Chapter 18 Solutions
EBK ELECTRICAL WIRING RESIDENTIAL
Ch. 18 - a. What circuit supplies the workshop lighting?...Ch. 18 - Prob. 2RCh. 18 - a. How is EMT fastened to masonry? _______________...Ch. 18 - What type of luminaires are installed on the...Ch. 18 - Prob. 5RCh. 18 - To what circuit are the smoke detectors connected?...Ch. 18 - Is it a Code requirement to connect smoke...Ch. 18 - Prob. 8RCh. 18 - Prob. 9RCh. 18 - Prob. 10R
Ch. 18 - Adjustment factors for conductor ampacities must...Ch. 18 - Prob. 12RCh. 18 - Prob. 13RCh. 18 - Calculate the total current draw of Circuit A17 if...Ch. 18 - Prob. 15RCh. 18 - A conduit body may contain splices if marked with...Ch. 18 - What size box would you use where Circuit A17...Ch. 18 - List the proper trade size of electrical metallic...Ch. 18 - According to the Code, what trade size EMT is...Ch. 18 - a. When more than three current-carrying...Ch. 18 - Prob. 21RCh. 18 - For laundry equipment in basements, what sort of...Ch. 18 - Prob. 23RCh. 18 - A Type NM cable carries a branch circuit to the...Ch. 18 - Prob. 25RCh. 18 - The following is a layout of the lighting circuits...Ch. 18 - Prob. 27RCh. 18 - Prob. 28R
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- If a recessed luminary without an integral junction boxes installed what extra wiring must be providedarrow_forward13. If an equipment bonding jumper is run external to a raceway, it must be less than _______ feet.A. 6B. 2C. 4D. 5arrow_forwardPlease provide Handwritten answer Question: NEC Reference Answer __________ __________ _____ is a jack or terminal that serves as the collection point for redundant grounding of electric appliances serving a patient care vicinity or for grounding other items in order to eliminate electromagnetic interference problems.Question: NEC Reference Answer __________ __________ _____ is a jack or terminal that serves as the collection point for redundant grounding of electric appliances serving a patient care vicinity or for grounding other items in order to eliminate electromagnetic interference problems.arrow_forward
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- 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_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_forwardA means shall be provided in each metal box over 100 cubic inches for the connection of an equipment grounding conductor. The means shall be permitted to be ______. a tapped hole the cover screw III. a screw used to mount the box (a.) I only (c.) I & II only (b.) II only (d.) I, II or IIIarrow_forward
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