Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 16, Problem 14RQ
One of the major components of a residential electronic control circuit that measures temperature is a
A. thermometer.
B. thermistor.
C. capacitor.
D. filter.
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What is a Thermocouple:
Select one:
a. A Thermocouple is a temperature
sensor that uses a small length of
platinum wire that is trimmed to have
particular resistance at specific
temperature.
b. A Thermocouple is a temperature
sensor that consists of two wires of
similar metals joined at one end.
C. A Thermocouple is a type of resistor
whose resistance varies with
temperature.
d. A Thermocouple is a temperature
sensor that consists of two conducting
wires of dissimilar metals joined at one
end.
Three different types of thermocouples
generate different voltages when measuring
the samé temperature because:
Select one:
a. They generate the same voltage at the
same temperature.
b. The voltage generated should be
modified because of the use of the
amplifier.
c. They are made of different materials.
d. There are instrument errors.
pneumatic leverage refers to the ability of a pneumatic system to
Chapter 16 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 16 - True or False: Pneumatic controls are...Ch. 16 - Pneumatic controls are operated by A. water. B....Ch. 16 - One advantage of a modern control system is A....Ch. 16 - A control loop contains _______, _______, and...Ch. 16 - Pneumatic air must A. be clean and dry. B. have...Ch. 16 - The air supplied to a diaphragm is 20 psig, and...Ch. 16 - When a large volume of air is needed at a...Ch. 16 - Prob. 8RQCh. 16 - Prob. 9RQCh. 16 - An analog control signal A. has an infinite number...
Ch. 16 - Another term used to describe sensitivity in...Ch. 16 - Prob. 12RQCh. 16 - Prob. 13RQCh. 16 - One of the major components of a residential...Ch. 16 - Prob. 15RQCh. 16 - Describe a control device, and give three examples...Ch. 16 - Describe what a sensor does in a DDC system used...Ch. 16 - What is the difference between an active and a...Ch. 16 - A control system consists of what three basic...Ch. 16 - List six advantages that DDC control systems have...Ch. 16 - Describe the difference between the analog and...Ch. 16 - Describe the difference between an open-loop and a...
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