Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 12, Problem 21R
To determine
Explain the reason why the receptacle’s screw terminals should not be used to splice the neutral conductors.
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Chapter 12 Solutions
Electrical Wiring Residential
Ch. 12 - If everything on Circuit B7 were turned on, what...Ch. 12 - From what panelboard does the kitchen lighting...Ch. 12 - How many luminaires are connected to the kitchen...Ch. 12 - What color fluorescent lamps are recommended for...Ch. 12 - a. What is the minimum number of 20-ampere...Ch. 12 - Prob. 6RCh. 12 - Prob. 7RCh. 12 - Duplex receptacles connected to the 20-ampere...Ch. 12 - Prob. 9RCh. 12 - A fundamental rule regarding the grounding of...
Ch. 12 - How many circuit conductors enter the box a. where...Ch. 12 - Prob. 12RCh. 12 - Where is the speed control for the range hood fan...Ch. 12 - Who is to furnish the range hood? _____Ch. 12 - Prob. 15RCh. 12 - Complete the wiring diagram, connecting...Ch. 12 - Each 20-ampere small-appliance branch-circuit load...Ch. 12 - a. The Code requires a minimum of two...Ch. 12 - According to 210.52, no point along the floor line...Ch. 12 - Prob. 21RCh. 12 - Electric fans produce a certain amount of noise....Ch. 12 - Prob. 23RCh. 12 - Prob. 24RCh. 12 - Prob. 25RCh. 12 - Prob. 26RCh. 12 - Prob. 27RCh. 12 - The following is a layout for the lighting circuit...
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- The white wire of a cable may be used to connect to a hot ungrounded circuit conductor only if ________________________________________________________ ______________________________________________________________________arrow_forwardWhat is the Code requirement for receptacles connected to circuits of different voltages and installed in one building?_____________________arrow_forwardWhat is the minimum size copper grounding electrode conductor for each of the following residential electrical services? Refer to Table 250.66. The ungrounded conductors are Type THW copper. 310.15(B)(7) is only for 120/240-volt, single-phase residential services and feeders. This Section does not apply to services and feeders other than residential.arrow_forward
- A 4 in. 1 in. octagon box has one cable clamp and one luminaire stud. How many 14 AWG conductors are permitted? ____________________ _______________________________________________ _______________________________________________ _______________________________________________ _______________________________________________arrow_forwardThe minimum point of attachment of the service-drop conductors to a building must in no case be less than above finished grade. A. 8 ft B. 10 ft C. 12 ft D. 15 ftarrow_forwardA branch circuit consists of five (5) convenience outlets. Determine the size of the conductor to be usedto the said branch circuit. Please indicate the type of conductors to be usedarrow_forward
- Not more than ____ ft of high-voltage cable shall be permitted in nonmetallic conduit from a high-voltage terminal of a neon transformer ( over 1000 volts, nominal ) supply to the first neon tube .arrow_forwardAssuming all terminals are rated 75°C and you have a #10 AWG THHN/THWN conductors in a conduit and the conduit is run on the roof off a office building where the ambient temperature never rises above 30°C the largest size circuit breaker or fuse permitted to protect these wires is:?arrow_forwardAnswer the following: Is it acceptable by code to use switch legs that have less ampacity as the rating of the circuit? Is it acceptable by code to use a breaker rated for less than the ampacity rating of the wires in a branch circuit?arrow_forward
- For residential wiring, not less than one 15-ampere lighting branch circuit should be provided for every ______________ ft2 of floor area. If 20-ampere lighting branch circuits are used, provide one 20-ampere lighting branch circuit for every _____________ ft2 of floor area.arrow_forwardIt is permissible for an electrician to connect aluminum, copper, or copper-clad aluminium conductors together in the same connector. (True) (False) (Circle the correct answer.)arrow_forwardHow many 14 AWG conductors are permitted in a device box that measures 3 in. 2 in. 2 in.? ___________________arrow_forward
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