ELECTRICAL WIRING:RESIDENTAL-6 PLANS
18th Edition
ISBN: 9781305098329
Author: MULLIN
Publisher: CENGAGE L
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Question
Chapter 23.1, Problem 13R
a.
To determine
Find the current drawn by 7.5 kW.
b.
To determine
Find the current drawn by 15 kW.
c.
To determine
Find the current drawn by 20 kW.
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In the generation of electricity, generating too little electricity will cause __________ and generating too much electricity will cause__________________
a. Blackout and brownout
b. Brownout and blackout
c. Lights on and lights out
d. Lights out and lights on
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
Two finite machines are connected together in a power station. Following are the details of the machine.
Rating of machine-1, 250 MVA, Angular Momentum 2.5 PU generates electrical power 1.74 PU.
Rating of machine-2, 400 MVA, Angular Momentum 9 PU.
If the equivalent electrical power of two machines is 1.74, then the value of electrical power of machine-2 is _______________ PU.
Chapter 23 Solutions
ELECTRICAL WIRING:RESIDENTAL-6 PLANS
Ch. 23.1 - a. What is the allowance in watts made for...Ch. 23.1 - What are some of the advantages of electric...Ch. 23.1 - List the different types of electric heating...Ch. 23.1 - There are two basic voltage classifications for...Ch. 23.1 - What device is required when the total connected...Ch. 23.1 - Prob. 6RCh. 23.1 - Prob. 7RCh. 23.1 - A certain type of control connects electric...Ch. 23.1 - What advantages does a 240-volt heating unit have...Ch. 23.1 - The white wire of a cable may be used to connect...
Ch. 23.1 - Receptacle outlets furnished as part of a...Ch. 23.1 - The branch circuit supplying a fixed electric...Ch. 23.1 - Prob. 13RCh. 23.1 - For ballpark calculations, the wattage output of a...Ch. 23.1 - A central electric furnace heating system is...Ch. 23.1 - What section of the Code provides the correct...Ch. 23.1 - Electric heating cable embedded in plaster, or...Ch. 23.2 - Prob. 1RCh. 23.2 - Prob. 2RCh. 23.2 - Prob. 3RCh. 23.2 - a. Must an air conditioner installed in a window...Ch. 23.2 - Prob. 5RCh. 23.2 - What is the Code requirement for receptacles...Ch. 23.2 - Prob. 7RCh. 23.2 - When the nameplate on an air-conditioning unit...Ch. 23.2 - Prob. 9RCh. 23.2 - Match the following terms with the statement that...Ch. 23.2 - The disconnect for an air conditioner or heat pump...
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