Exercise: Heat Transfer Refrigeration And Air Conditioning

Questions for: Heat Transfer Refrigeration And Air Conditioning

A human body feels comfortable when the heat produced by the metabolism of human body is equal to the
A:
heat dissipated to the surroundings
B:
heat stored in the human body
C:
sum of (a) and (b)
D:
difference of (a) and (b)
Answer: C
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The temperature of air recorded by a thermometer, when it is not effected by the moisture present in the air, is called
A:
wet bulb temperature
B:
dry bulb temperature
C:
dew point temperature
D:
none of these
Answer: B
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The lowest temperature during the cycle in a vapour compression system occurs after
A:
compression
B:
expansion
C:
condensation
D:
evaporation
Answer: D
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The leakage in a refrigeration system using ammonia is detected by
A:
halide torch
B:
sulphur sticks
C:
soap and water
D:
all of these
Answer: B
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The process, generally used in summer air conditioning to cool and dehumidify the air, is called
A:
humidification
B:
dehumidification
C:
heating and humidification
D:
cooling and dehumidification
Answer: D
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