Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
6th Edition
ISBN: 9780135257272
Author: James D. Halderman
Publisher: PEARSON
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Textbook Question
Chapter 21, Problem 6CQ
The normal operating temperature (coolant temperature) of an engine equipped with a 195°F thermostat is __________.
- a. 175°F to 195°F
- b. 185°F to 205°F
- c. 195°F to 215°F
- d. 175°F to 215°F
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Students have asked these similar questions
In the modern refrigerator heat inside the refrigerator is absorbed by _______.
Ammonia
Cold solid
Vaporizing refrigerant
Hot vapor
Cold liquid
Which 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.
to run
d. both a and b
44. Ifa thermostatic expansion valve's thermal bulb came loose from the suction line at the outlet of the
evaporator, whích of the following could result?
The bulb pressure would increase and the c.
thermostatic expansion valve would
open.
b. The superheat in the evaporator would
decrease.
a.
Liquid refrigerant would flow back to the
compressor.
d.
All of the above are correct.
45. If the thermal bulb assembly develops a leak, what will occur?
All of the system's refrigerant will leak
a.
The valve will open to allow more
c.
refrigerant to flow.
d. It will have no effect on system
operation.
out.
b. The bulb pressure will reduce and the
valve will close.
46. The purpose of an externally equalized thermostatic expansion valve is to
compensate for excessive evaporator
pressure drop
b. allow system to equalize faster
a.
prevent the expansion valve from
frosting up
d.
c.
allow refrigerant to expand in the
compressor
47. The primary function of an expansion device is…
Chapter 21 Solutions
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
Ch. 21 - What is normal operating coolant temperature?Ch. 21 - Explain the flow of coolant through the engine and...Ch. 21 - Why is a cooling system pressurized?Ch. 21 - Describe how to diagnose a heater problem.Ch. 21 - What are 10 common causes of overheating?Ch. 21 - What diagnostic trouble code (DTC) could be set if...Ch. 21 - Prob. 2CQCh. 21 - What type of pump is a water pump? a. Positive...Ch. 21 - Water pumps __________. a. only work at idle and...Ch. 21 - Which statement is true about thermostats? a. The...
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