Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Textbook Question
Chapter 54, Problem 8RQ
On which of the following laws of nature is the air conditioning system based?
- Heat flow
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The heat pump is a agent acting in between hot body and cold body
Select one:
True
False
A domestic refrigerator sits in a kitchen, switched on, with the refrigerator door wide open.
The kitchen itself is well insulated and it can be assumed no heat can escape or enter the kitchen from the outside.
Which of the following is the most accurate statement.
а.
The temperature in the kitchen will stay the same.
O b. The temperature in the kitchen could go up or down depending on the mechanical efficiency of the compressor.
O c.
The temperature in the kitchen will go down very slightly.
d. The temperature in the kitchen could go up or down, depending on the Coefficient of Performance (COP) of the refrigerator.
е.
The temperature in the kitchen will go up very slightly.
In the induced draft cooling tower, the fan forces the air through the
tower.
True
False
Chapter 54 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 54 - What is the amount of heat necessary to change the...Ch. 54 - What type of electromagnetic clutch is used in...Ch. 54 - Describe four ways in which the heater control...Ch. 54 - What is the purpose of the compressor clutch...Ch. 54 - What does change of state mean? And why is it...Ch. 54 - What state is the refrigerant in when it leaves...Ch. 54 - What causes condensed water to leak from the air...Ch. 54 - On which of the following laws of nature is the...Ch. 54 - Which of the following statements is true?...Ch. 54 - Which of the following statements is false? The...
Ch. 54 - Which of the following statements about PTC...Ch. 54 - Which of the following is electrically connected...Ch. 54 - Explain why a diode may be wired into the compres...Ch. 54 - Which of the following oils is used in an original...Ch. 54 - A heating system includes all of the following...Ch. 54 - Technician A says that a great amount of heat is...Ch. 54 - Technician A says that suction lines become very...Ch. 54 - While discussing the reasons the use of R-134a is...Ch. 54 - While discussing the reaction by a refrigerant to...Ch. 54 - While discussing solar sensors: Technician A says...Ch. 54 - While discussing the future use of CO2 as a...Ch. 54 - Technician A says that when the A7C system is off,...Ch. 54 - Technician A says that when the refrigerant is...Ch. 54 - A heater does not supply enough heat and the...Ch. 54 - While discussing relative humidity: Technician A...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- True or False: All heat pumps are practical anywhere in the United States. Explain your answer.arrow_forwardA water-cooling tower capacity is governed by what aspect of the ambient air? A. Dry-bulb temperature B. Wet-bulb temperature C. Enthalpy of the air D. Altitudearrow_forwardWhat are the three most common types of compressors used in air-conditioning?arrow_forward
- Why are the air conditioning units usually placed above head level?arrow_forwardWhich of the following statements about PTC heaters is not true? Some vehicles have a PTC heating element in the heater core. Some vehicles have a PTC element installed in an air duct from the blower housing to increase the air temperature in the ducts. PTC heaters are electronically controlled and work with the cooling system to provide hot coolant. PTC elements are small ceramic stones that react quickly to changes in current.arrow_forward5. What are the features of the central air conditioning system? 6. What are the disadvantages of using central air conditioning?arrow_forward
- What is Ice Powered Air Conditioning?arrow_forwardWhich of the following statements is true? Refrigerant leaves the compressor as a high-pressure, high-temperature liquid. Refrigerant leaves the condenser as a low-pressure, low-temperature liquid. Refrigerant returns to the compressor as a low-pressure, high-temperature vapor. None of the above.arrow_forwardWhat is the purpose of a heat sink?arrow_forward
- What are mullion heaters?arrow_forwardWhich of the following statements best defines the term evacuation? A process in which the refrigerant in a system is released. A condition that exists when a compressor runs until there is no refrigerant left in the system. The process that pulls all traces of air and moisture from the system. A process that uses air to force moisture and dirt out of the system.arrow_forwardA medium-temperature refrigeration box operates within what temperature range? A. 28F to 40F B. 40F to 60F C. 0F to -20F D. 0F to 50Farrow_forward
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