Refrigeration Practice Test Questions and Answers

Refrigeration Practice Test Questions and
Answers

Question >> 1

Which is a disadvantage of a packaged indoor unit
Answer>>
the potential for excessive noise exists



Question >> 2
Which type of cooling tower fill material design that spreads the water evenly to form
thin layers
Answer>>
film type



Question >> 3
All of the following are advantages of open compressors except
a. The compressor does not need to be replaced if the motor fails

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,b. easy to change pumping capacity
c. easy to change motors
d. does not need a shaft seal
Answer>>
does not need a shaft seal



Question >> 4
A change in heat result in a change in temperature but not in the state
Answer>>
sensible



Question >> 5
Which is most likely to cause high head pressure
a. low water temperature or ambient air temperature
b. inefficient compressor valves
c. low load condition
d. overcharge
Answer>>
overcharge (too much refrigerant)



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, Question >> 6
Where is a receiver located in a refrigeration system
Answer>>
after the condenser on the liquid line

Question >> 7
Which is most likely to cause low to no subcooling
a. oversized condenser
b. thermostatic expansion valve overfeeding
c. inefficient compressor
d. overcharge
Answer>>
thermostatic expansion valve overfeeding



Question >> 8
In a split system, the indoor section typically consist of the evaporator, fan, , and a
connection for the suction and liquid lines
Answer>>
a metering device



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