Electrical Wiring: Residental - With Plans (Paperback) Package
18th Edition
ISBN: 9781305416376
Author: MULLIN
Publisher: Cengage
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Textbook Question
Chapter 12, Problem 19R
- a. The Code requires a minimum of two small-appliance circuits in a kitchen. Is it permitted to connect a receptacle in a dining room to one of the kitchen small-appliance circuits? _______________ What Code section applies to this situation? _______________
- b. Are outdoor weatherproof receptacles permitted to be connected to a 20-ampere small-appliance circuit? _______________
- c. Receptacles located above the countertops in the kitchen must be supplied by at least _______________ 20-ampere small-appliance circuits.
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QUESTION 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 B
Which of the following statements about equipment grounding conductors (EGCS) is true?
A. The National Electrical Code permits the EGC to also perform as a grounding electrode conductor.
B. More than one EGC must be used if multiple circuits are installed in a single raceway, cable, or cable tray.
C. No current should be present in the EGC during normal operation.
D. EGCs are required to be decreased in size to address voltage drop.
Which of the following statements about equipment grounding conductors (EGCs) is true?A. The National Electrical Code permits the EGC to also perform as a grounding electrode conductor.B. More than one EGC must be used if multiple circuits are installed in a single raceway, cable, or cable tray.C. No current should be present in the EGC during normal operation.D. EGCs are required to be decreased in size to address voltage drop.
Chapter 12 Solutions
Electrical Wiring: Residental - With Plans (Paperback) Package
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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- 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_forwardEquipment Grounding 10. Which of the following statements about ground faults is true?A. They usually occur between any grounded circuit conductor and the equipment grounding conductor. B. They're often normal and typically intentional.C. They can't result from human error.D. They can happen if a conductive tool is dropped in an energized equipment's electrical enclosure.arrow_forwardGrounding Lighting Fixtures. There are specific requirements for grounding lighting fixtures. How must they be grounded and with what size conductors? Be sure and cite the code in your answers.arrow_forward
- A 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_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_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_forward
- 1. A14/2 type copper used for a general lighting branch circuit. Ampacity:______________ Maximum Fuse or Circuit Breakers Sizes:________________ 2.Three 8 AWG copper conductors with THHN insulation Installed in garage in electrical metallic tubing (EMT). The ambient temperature in the garage can reach as high as 110'F. All termination points for this circuit are rated 60'C. Ampacity:______________ Maximum Fuse or Circuit Breakers Sizes:________________ 3.Four 4 AWG copper conductor with THWN insulation imstalled in EMT in a basement. All termination points are rated at 60'C. Ampacity:______________ Maximum Fuse or Circuit Breakers Sizes:________________ 4. An 8/3 Type UF copper cable installed underground from a house to a detached garage to feed a 120/240-volt subpanel. All termination points are rated at 60'C.…arrow_forwardBuild a ladder and wiring diagram Circuit A. One lampholder and one duplex receptacle controlled by a Single Pole Switch. Circuit B. Single Pole Switch controlling the top half of a duplex receptacle that when energized, is indicated by a Pilot-light at the Single Pole Switch location; plus an Isolated Ground Duplex Receptacle that is always hot. Circuit C. The bottom half of the switched receptacle on Circuit ‘B’ is to be always hot; plus another Duplex Receptacle that is controlled from two locations using a Coast 3-Way wiring-system.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_forward
- 13.a. What does Section 230.10 prohibit the use of for the support of overhead service conductors?A. Balcony railingsB. Trees and other types of vegetationC. Wooden fencingD. Lampposts 13.b. Section 230.6 establishes five conditions under which conductors can be physically located within abuilding or structure but can be considered _______ for the purposes of applying the Code requirements.A. protectedB. enabledC. chargedD. outsidearrow_forwardTo 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 unconnectedarrow_forward7. If a grounded surface metal box makes direct contact with the mounting strap for a switch or receptacle,then theA. bonding jumper can be undersized.B. neutral conductor will operate as the equipment grounding conductor.C. bonding jumper isn't required.D. device must be protected with a GFCI device.arrow_forward
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