Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 12, Problem 25R
a.
To determine
Check whether the given statement is true or false.
b.
To determine
Check whether the given statement is true or false.
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5. If a separate, wire-type equipment grounding conductor (EGC) is used for any reason, the EGC of a grounding-type receptacle must be connected to which of the following?A. The grounding terminal bar outside the service equipment enclosure in a grounded systemB. An EGC that's part of another branch circuit that originates from where the branch circuit for the receptacle originatesC. Any accessible point on the grounding electrode conductorD. The service conductor outside the service equipment enclosure in an ungrounded system
Per NEC 590.6(A)(3), All 125-volt and 125/250-volt, single-phase, 15-, 20-, and 30-ampere
receptacle outlets that are a part of a 15-kW or smaller portable generator shall have listed ground-fault circuit-interrupter protection for personnel.
Group of answer choices
True
False
21.Which of the following wiring methods may be used inside the duct used for vapor removal and ventilation of commercial type cooking equipment?
(a.) nonmetallic sheathed cable (b.) EMT (c.) rigid steel conduit (d.) none of these
22. Ground-fault circuit-interrupter (GFCI) protection is required in all of the following locations EXCEPT: (a.) kitchen receptacles in an office building lunchroom installed within 6’ of the sink
(b.) kitchen receptacles in a dwelling installed to serve counter top surfaces 10’ away from the sink
(c.) receptacles in an office building restroom which has only a basin and toilet
(d.) receptacle provided for servicing a rooftop air conditioning unit on the roof of a warehouse
23. Where GFCI protection is located in the power supply cord for an outdoor portable sign, the ground-fault circuit interrupter shall be located within _____inches of the attachment plug.
(a.) 6 (c.) 18 (b.) 12 (d.) 24
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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- 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.arrow_forwardConstruction sites can be dangerous because of the manner in which extension cords, portable electrical tools, and other electrical equipment are used and abused. To reduce this hazard, 590.6(A) of the NEC requires that all 125-volt, single-phase, 15-, 20-, and 30-ampere receptacle outlets used for temporary wiring during construction must be _________________ protected.arrow_forwardA residential air-conditioning unit is installed in the attic. a. Is a lighting outlet required? __________ b. What Code section applies? __________ c. If a lighting outlet is required, how shall it be controlled? __________ d. What Code section applies? __________ e. Is a receptacle outlet required? __________ f. What Code section applies? __________arrow_forward
- NEC 590.6(A)(3) requires that all 125-volt and 125/250-volt, single-phase, 15-, 20-, and 30-ampere receptacle outlets used on a construction site that are a part of a portable generator have listed: (Circle the correct answer.) a. ground-fault circuit interrupter protection for personnel. b. grounding-type receptacles. c. twist-lock receptacles.arrow_forwardIs a GFCI receptacle permitted be installed as a replacement in an old installation where the 2-wire circuit has no equipment grounding conductor? _________________arrow_forward_______ type receptacles must be installed on all 15- and 20-ampere branch circuits except for replacement receptacles as permitted by 406.4(D). Select one: a. AFCI b. GFCI c. Duplex d. Groundingarrow_forward
- What is the estimated demand load for general lighting and general-use receptacles in a 24-room motel, where each unit has an area of 700 square feet?arrow_forwardwiring diagram for a 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 hotarrow_forwardWhere a building or structure is suplkied by more than one service, or a combination of branch circuits, feeders, and services, a permanent plaque or directory must be installed at each sertvice disconnect location denoting all other suplying that building or structure and the area served by each. A. Services B. Feeders C. Branch circuits D. All of the abovearrow_forward
- Plans require the installation of surface-mounted fluorescent luminaires on the ceiling of a recreation room that is finished with low-density ceiling fiberboard. What sort of mark would you look for on the label of the luminaire? ________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________arrow_forwardThe recessed fluorescent luminaires installed in the ceiling of the recreation room of this residence are connected with trade size flexible metal conduit. These flexible connections are commonly referred to as fixture whips. Does the flexible metal conduit provide adequate grounding for the luminaires, or must a separate equipment grounding conductor be installed? ________________arrow_forwardThe NEC requires what type of unique protection for all 120-volt, 15- and 20-ampere branch-circuit outlets in bedrooms of residential homes? In which section of the NEC is this requirement found? _____________________arrow_forward
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