Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 6, Problem 37R
Two 125-volt receptacles on a 20-ampere, 120-volt branch circuit are installed in the laundry room. One (1) is for the washer and is within 6 ft of the laundry sink and the other (2) is on a wall more than 6 ft from the sink. The receptacles are required to have: (Circle the correct answer.)
- a. GFCI and AFCI protection for both (1) and (2)
- b. GFCI and AFCI protection for (1) and only GFCI protection for (2)
- c. GFCI and AFCI protection for (2) and only AFCI protection for (1)
- d. GFCI and AFCI protection for (1) and only AFCI protection for (2)
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20. Four electricians are discussing wiring under raised floors in information technology equipment rooms.Electrician A says that wiring under the raised floor requires fire-resistant walls, floors, and ceilings betweenother occupancies. Electrician B says that wiring under the raised floor requires fire resistant halfway up thewalls and floors between other occupancies. Electrician C says that the room must employ a disconnectingmeans that removes half of the power to all equipment in the room. Electrician D says that a disconnectingmeans isn't necessary for the room. Which of the following statements is correct?A. Electrician A is correct.B. Electrician D is correct.C. Electrician B is correct.D. Electrician C is correct.
Four electricians are discussing wiring under raised floors in information technology equipment rooms. Electrician A says that wiring under the raised floor requires fire-resistant walls, floors, and ceilings between other occupancies. Electrician B says that wiring under the raised floor requires fire resistant halfway up the walls and floors between other occupancies. Electrician C says that the room must employ a disconnecting means that removes half of the power to all equipment in the room. Electrician D says that a disconnecting means isn't necessary for the room. Which of the following statements is correct?
A. Electrician B is correct.
B. Electrician D is correct.
C. Electrician A is correct.
D. Electrician C is correct.
Chapter 6 Solutions
Electrical Wiring Residential
Ch. 6 - Explain the operation of a ground-fault circuit...Ch. 6 - Prob. 2RCh. 6 - Where must GFCI receptacles be installed in...Ch. 6 - Prob. 4RCh. 6 - Prob. 5RCh. 6 - A homeowner calls in an electrical contractor to...Ch. 6 - Prob. 7RCh. 6 - Extremely long circuit runs connected to a GFCI...Ch. 6 - If a person comes in contact with the hot and...Ch. 6 - What might happen if the line and load connections...
Ch. 6 - Is a GFCI receptacle permitted be installed as a...Ch. 6 - Prob. 12RCh. 6 - Prob. 13RCh. 6 - Prob. 14RCh. 6 - Prob. 15RCh. 6 - Construction sites can be dangerous because of the...Ch. 6 - Prob. 17RCh. 6 - Prob. 18RCh. 6 - The term SPD is becoming quite common. What do the...Ch. 6 - Transients (surges) on a line can cause spikes or...Ch. 6 - Prob. 21RCh. 6 - Prob. 22RCh. 6 - Some line transients are not damaging to...Ch. 6 - Briefly explain the operation of an immersion...Ch. 6 - What range of leakage current must trip an IDCI?Ch. 6 - Prob. 26RCh. 6 - Other than for a few exceptions, the NEC requires...Ch. 6 - In an old house, an existing nongrounding...Ch. 6 - Prob. 29RCh. 6 - NEC 210.12(A) requires AFCI protection for the...Ch. 6 - When installing GFCI and AFCI circuit breakers in...Ch. 6 - Prob. 32RCh. 6 - Prob. 33RCh. 6 - A switch that is located inside a bedroom for an...Ch. 6 - Which of the following installations for a kitchen...Ch. 6 - The receptacle outlets in the garage are required...Ch. 6 - Two 125-volt receptacles on a 20-ampere, 120-volt...Ch. 6 - Prob. 38R
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