Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Textbook Question
Chapter 24, Problem 4R
In a home, the low-voltage wiring between the thermostat and furnace is (Circle the correct answer.)
- a. Class 1.
- b. Class 2.
- c. Class 3.
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Ohm's Law states that the electric current flowing though a ________ is directly proportional to the ________.
Select one:
a. closed circuit --- total resistance
b. closed circuit --- switch resistance
c. open circuit --- supply voltage
d. closed circuit --- supply voltage
Draw the block diagram representation of a heating system.
Short circuit is occurred when:
Select one:
a. The voltage between the two terminals is zero although there may be a nonzero current
between the terminals.
b. All of the given answers.
c. There will be a zero-resistance connection between terminal A and B and therefore the 2
terminals are at the same voltage.
d. A pair of terminals connected by a wire (of zero resistance).
Chapter 24 Solutions
Electrical Wiring Residential
Ch. 24 - Prob. 1RCh. 24 - Prob. 2RCh. 24 - Prob. 3RCh. 24 - In a home, the low-voltage wiring between the...Ch. 24 - Prob. 5RCh. 24 - The nameplate on a transformer will indicate...Ch. 24 - If Class 2 conductors are insulated for 150 volts,...Ch. 24 - If you use 600-volt rated conductors for Class 2...Ch. 24 - The NEC is very strict about securing anything to...Ch. 24 - Does the Code permit attaching the low-voltage...
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