Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Textbook Question
Chapter 26, Problem 3R
Do heat alarms and carbon monoxide alarms take the place of smoke alarms? Explain.
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17. The filament of incandescent lamp is usually made of:
a. copper
b. silver
c. aluminum
d. tungsten
18. A current measuring instrument can be modified to measure voltages by:
a. using thicker wire in the coil
b. using a high resistance shunt
c. adding resistance in series
d. adding resistance in parallel
21. "When two power sources are connected in a series-aiding configuration, the output voltage equals the _____________"
a. supply with the highest voltage
b. supply with the lowest voltage
c. difference of the two supplies
d. sum of the two supplies
What are the different Impedance matching devices?
subject : Electrical engineering
Chapter 26 Solutions
Electrical Wiring Residential
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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- The following problems pertain to luminaires in clothes closets. a. Does the Code permit bare incandescent lamps to be installed in porcelain key-less or porcelain pull-chain lampholders? ________________ b. Does the Code permit bare fluorescent lamp luminaires to be installed? ________________ c. Does the Code permit pendant lampholders to be installed? ________________ d. What is the minimum clearance from the storage area to surface-mounted incandescent luminaires? ________________ e. What is the minimum clearance from the storage area to surface-mounted fluorescent luminaires? ________________ f. What is the minimum distance between recessed incandescent or recessed fluorescent luminaires and the storage area? ________________ g. Define the storage area. ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ h. If a clothes hanging rod is installed where there is access from both sides, such as might be found in a large walk-in clothes closet, define the storage area under that rod. ___________________________________ ___________________________________arrow_forwardIn your own words, explain the terms alarm and detector. _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________arrow_forwardName the two types of smoke alarms.arrow_forward
- TYPE OF APPLIANCES: AIRCONDITION what type of detectors are present in the schematic diagram of the appliance and kinldy discuss the function, and operation of the detector. Kindly include descriptions, schematic diagrams, technical specifications.arrow_forward1. One type of lighting controls technology that does not work well with bollards on pedestrian walkways is: a. Time Based controls b. Louver controls c. Occupancy Sensor controls d. None of the above 2. Three types of high-intensity discharge (HID) lighting technologies are: a. Mercury Vapor, High Pressure Sodium, and Metal Halide b. Tubular Fluorescent, High Pressure Sodium, and Metal Halide c. Metal Halide, High Pressure Sodium, and Tubular Fluorescent d. None of the above 3. Some newer models of HID and Fluorescent light sources can a have rated life of: a. 10,000 - 20,000 hours b. 25,000 - 50,000 hours c. 50,000 to 100,000+ hours d. None of the above 4. Which of the following characteristics apply to Induction Lighting? a. A physically large light source b. A limited optical designs c. A limited range of light d. All of the above 5. What technology advancement enables a light source to have longer life? a. Elimination of electrodes b. Elimination of…arrow_forwardWhat are the pros of burglar alarms ?arrow_forward
- What are the ATEX requirements of the explosion protected equipment?arrow_forward1. A type of electrical signal that has two states? 2. Write True or False about the following statement: There is a closed loop system in a SCADA. 3. Write True or False about the following statement: SCADA is used in chemical and power generating plants and factories.arrow_forwardA galvanometer is used as a _________a) current sourceb) voltage sourcec) null detectord) input impedancearrow_forward
- Question 3: Suppose an engineer designed a fire alarm system for a large warehouse, with multiple pushbutton switches connected to a single alarm siren: Siren Actuating any of the normally-open switches results in the alarm sounding. So far, so good. Now, suppose that one of the wires connecting one side of several switches to the rest of the circuit breaks open. What will the result of this failure be? Siren break!arrow_forward11 and 12 , i need this answerarrow_forwardWhat is the total number of systems?arrow_forward
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