ELECTRICAL WIRING:RESIDENTAL-6 PLANS
18th Edition
ISBN: 9781305098329
Author: MULLIN
Publisher: CENGAGE L
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Textbook Question
Chapter 26, Problem 7R
Circle the correct answer from the following statements:
- a. Smoke alarms installed in new one- and two-family homes must be battery operated only, so as not to be affected by a power outage.
- b. Smoke alarms installed in new one- and two-family homes are to be dual-powered by a 120-volt circuit and a battery.
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Chapter 26 Solutions
ELECTRICAL WIRING:RESIDENTAL-6 PLANS
Ch. 26 - In your own words, explain the terms alarm and...Ch. 26 - The requirements for household fire alarm systems...Ch. 26 - Do heat alarms and carbon monoxide alarms take the...Ch. 26 - Name two basic ways that smoke alarms are powered.Ch. 26 - Name the two types of smoke alarms.Ch. 26 - List the absolute minimum level of smoke alarm...Ch. 26 - Circle the correct answer from the following...Ch. 26 - Circle the correct answer from the following...Ch. 26 - Circle the correct answer from the following...Ch. 26 - Prob. 10R
Ch. 26 - Prob. 11RCh. 26 - An important but often overlooked requirement in...Ch. 26 - Carbon monoxide is ____________, and is...Ch. 26 - Circle the correct answer from the following...Ch. 26 - The wiring of more complex household fire alarm...Ch. 26 - Circle the correct answer from the following...Ch. 26 - Circle the correct answer from the following...Ch. 26 - Fire alarm cable generally used in more complex...Ch. 26 - When installing a fire alarm system or a complete...Ch. 26 - Residential sprinkler fire protection systems are...
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- Circle the correct answer from the following statements: a. Always connect a fire alarm circuit or system to a power supply that has ground-fault circuit interrupter (GFCI) protection. b. Never connect a fire alarm circuit or system to a power supply that has ground-fault circuit interrupter (GFCI) protection. c. It makes no difference whether the branch circuit is GFCI or AFCI protected because the alarms are required to have battery backup power. In the event of a loss of power for whatever reason, the alarms would still be operative.arrow_forwardThe protective devices, such as ground wires, lightning arrestors, circuit breakers, relays are used to: Select one: a. step up the voltage. O b. Protect equipment and devices of the power system. O c. None of the above O d. step down the voltage.arrow_forwardWho has the responsibility for Code interpretations? When are rules in the PEC mandatory and when are they advisory? What color-coding is required on multiwire branch circuits? What is the basis for figuring the general lighting loads in occupancies?arrow_forward
- Generators can be connected to the electrical system of the residence in several ways (Select all answers that apply) Group of answer choices A. permanent generator where the neutral is not switched by the transfer switch B. portable generator that has the neutral bonded to the frame and is connected to the dwelling electrical system transfer equipment by a flexible cord C. permanent generator where the neutral is switched by the transfer switch D. portable generator that has the neutral isolated or floated from the frame and is connected to the dwelling electrical system transfer equipment by a flexible cordarrow_forwardList the rooms and/or areas in a newly constructed single-family residence where arc-fault circuit-interrupter (AFCI) protection is required by the NEC.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
- Lockout is required: During servicing and maintenance where unexpected ener- gization or start-up of equipment could harm employees. During repair and replacement work, and during renovation work. a. b. C. During modifications or other adjustments to powered equipment. d. All of the above. Lockout may involve: Opening a disconnect switch. b. a. Closing a valve. Placing a block in the equipment. d. All of the above. C. Lockout is the process ci Shutting off a machine at the end of a shift. Warning equipment operators about the risks involved in bypassing a machine guard. Preventing the flow of energy from a power source to a piece of equipment, and keeping it from operating. a. b. C. d. Preventing mechanics from starting repairs without the machine operators' knowledge. Tagout: Serves as a warning. b. Physically restrains a person from operating a power source. Must be applied using specialized tagout tools. a. C. d. Must be worn like a badge by the employee who is doing the repairs.…arrow_forwardFour 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.arrow_forwardYou just moved into a new house and notice that the bathroom light and hall light will not turn on unless the switch for both lights is in the on position. What can you conclude about the lights? a. The hall light and bathroom light are wired in parallel. b. The light switch for the bathroom resets a breaker for both lights C. The hall light and bathroom light are wired in series. d. The hall light and bathroom light must have two separate power sources. e. Two of the above.arrow_forward
- Do heat alarms and carbon monoxide alarms take the place of smoke alarms? Explain.arrow_forwardladder diagram for three circuits, circuit A is one lampholder and one duplex receptacle controlled by a single pole switch, circuit B is 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 hot, circuit C is 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 coast 3-way wiring system two circuits are 3-wire multiwire branch circuitarrow_forward5. Why isn't solder permitted to be relied on for grounding electrode connections?A. The solder increases the chances of a ground-fault event occurring.B. The heat from the solder weakens the connection and exposes it to physical damage.C. The use of solder doesn't meet the requirements for corrosive influences.D. The connection's integrity can be negatively affected by heat during a ground-fault event.arrow_forward
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