Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Textbook Question
Chapter 5, Problem 20R
List the methods by which an equipment grounding conductor is connected to a device box.
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If the NEC provides a requirement to grounding equipment, it generally implies that there will be a direct connection to Earth of connection through a/an
A. Equipment grounding conductor
B. Bonding conductor
C. Grounding electrode conductor
D. Equipotential bonding conductor
5. Which of the following descriptions of a ground ring is correct?A. A ground ring is a circular formation that's made up of six or more grounding electrodes.B. A ground ring is a coiled conductor that's buried underneath a utility pole.C. A ground ring is a device that's used to clamp a conductor to a water pipe.D. A ground ring is a bare copper conductor that will encircle an entire structure underground.
Four No. 12 and four No. 10 conductors are to be installed in a EMT conduit 600 V jacketed. What size EMT conduit is required if a. The conductors are Type T90 Nylon? b. The conductors are Type RW90?
Chapter 5 Solutions
Electrical Wiring Residential
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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- Grounding lighting fixtures. Threre are specific requirements for grounding lighting fixtures. How must they be grounded and with what size conductors?arrow_forwardWhat wire label should I put in rollover cable using EIA/TIA-568A and EIA/TIA-568A and what color for each pinarrow_forwardwhat is the minimum size single conductor of copper jacketed mineral insulated cable that can for a consumer's service?arrow_forward
- Electrical Engineering What is the smallest square box that will accommodate four No. 12 conductors and four No. 10 conductors if a. These conductors are pulled through without a splice? b. These conductors are all spliced in the box?arrow_forwardWhy is it important, when soldering connectors onto a piece of electronic circuitry, to leave no pointy protrusions from the solder joints?arrow_forwardwhere do we find how many #12 THHN conductors can fit in a 1/2 inch EMT conduit?arrow_forward
- How does the shielding in a cable affect its performance, and in what situations is it essential to have shielded cables?arrow_forward13. Which of the following is a method for identifying a grounding terminal for connecting an equipmentgrounding conductor to a device?A. The letters EGCB. A green octagonal nutC. A red pressure wire connectorD. A green screw with a hexagon headarrow_forwardThe following problems refer to grounding requirements. 1. What is the minimum size copper grounding electrode conductor for a service with three sets of parallel 350 kcmil conductors (three conductors per phase)?arrow_forward
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