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 4RQ
What is the purpose of the compressor clutch thermostatic switch?
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The two types of relays used to start hermetic compressorsare the _________ relay and the _________.
The A/C compressor cycles rapidly, and air coming from the vents is only slightly cool. Technician A says the problem could be a low refrigerant charge. Technician B says the problem could be a defective thermostatic switch. Who is right?
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Technician A
Technician B
Both A and B
Neither A nor B
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where is th sensing bulb on a thermostatic expansion valve mounted?
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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- How does the process of elimination play a part in troubleshooting an air-conditioning systemarrow_forwardTrue or False: All reciprocating compressors start up fully loaded.arrow_forwardWhich of the following features does an automatic combination gas valve have? A. Pressure regulator B. Pilot safety shutoff C. Redundant shutoff feature D. All of the abovearrow_forward
- Briefly explain the function of the 'Thermostatic Valve' and 'Expansion Tank' in a water cooled engine.arrow_forwardIf the thermostat contacts are closed the compressor and the condenser fan motor are not operating, and all the other loads are operating properly, which might be the problem? A. A bad high pressure safety switch. B. A bad low pressure switch C. Both A. and B. D. A bad thermostatarrow_forwardWhat safety feature does the curcuit possess in addition to the pressure relief valve?arrow_forward
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