Electrical Wiring: Residental - With Plans (Paperback) Package
18th Edition
ISBN: 9781305416376
Author: MULLIN
Publisher: Cengage
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Chapter 30, Problem 8R
To determine
Explain whether the conductors are allowed to run overhead the swimming pool.
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To testing installation of grounds, the usual procedure is to connect one lead of the megohmmeter to one of the conductors, then the other lead is___.
A, connected to another conductor b, connected to the conduit or raceway c. Connected to a special grounding electrode on the megohmmeter d. Left unconnected
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.
2.
Conductors in concealed raceways, even though they may become accessible by withdrawing them, are still considered ____.
Select one:
A. DISTRIBUTED
B. GROUNDED
C. CONCEALED
D. INACCESSIBLE
Chapter 30 Solutions
Electrical Wiring: Residental - With Plans (Paperback) Package
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- equipment grounding 1. The only exception to the need for all information technology equipment to be satisfactorily grounded is where the equipment is A. DC powered.B. backup generator powered. C. double-insulated.D. isolated equipment. 2. Which section of the National Electrical Code lists sizing requirements for wire-type equipment grounding conductors? A. 250.66 B. 250.118 C. 250.4 D. 250.122arrow_forwardConductors shall be arranged so the power distribution block terminals are _____ following installation. Select one: A. INSIGHT B. AVAILABLE C. ACCESSIBLE D. UNOBSTRUCTEDarrow_forwardElectricity, Magnetism, and Waves Activity Explain the science behind the scenario. SCENARIO #5: In the science department, we have a set of magnets that we set up to show you ‘levitating magnets’. This is the same process that is used (only at a much grander scale) with magnetic levitating trains. Explain how the magnets must be oriented to get the trains to ‘float’ above the tracks. Answer: ___________________________________________________________________________________________________________________________________________________arrow_forward
- Overhead service-drop conductors must have a horizontal clearance of __ from a pool. A. 6 ft B. 10 ft C. 8 ft D. 4 ftarrow_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_forward1.a. Section 300.15(C) requires a fitting to be installed on each end of a conduit or tubing being used toprovide support or protection to protect the cable fromA. hazardous vapors.B. direct sunlight.C. abrasion.D. extreme heat or cold.1.b. Typically, a/an _______ is a better electrode than a ground rod because it provides a greater surface areafrom which the electrons can be dissipated.A. continuous grounding conductorB. clamp-on ground resistance meterC. rebarD. OCPDarrow_forward
- 2. 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_forwardMessages AA Statement one Training will allow you to safely erect a mobile. tower scaffold on any ground surface condition. and access the tower both internal and externally Statement two In windy conditions placing sheeting around the mobile tower scaffold will protect the workers on the tower a) Statement two is incorrect b) Statement one and two are correct c) Statement one is correct and statement two is incorrect d) Both statements are incorrect actclass.co.uk 22 Questi 23 Questi 24 Questi 25 Questi 26 Questi Submit Answers Ćarrow_forwardService-lateral conductors are required to be insulated except for the grounded neutral conductor when it is___. A. Bare copper used in a raceway B. Bare copper & part of a cable assembly that is identified for ground use C. copper-clad Aluminum D. A or Barrow_forward
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