Exercise: Heat Transfer Refrigeration And Air Conditioning

Questions for: Heat Transfer Refrigeration And Air Conditioning

The process of heat transfer from one particle of the body to another is called conduction, when the particles of the body
A:
move actually
B:
do not move actually
C:
affect the intervening medium
D:
does not affect the intervening medium
Answer: B
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The coefficient of performance of a domestic refrigerator is __________ as compared to a domestic air-conditioner.
A:
same
B:
less
C:
more
D:
Answer: B
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The ratio of the energy absorbed by the body to the total energy falling on it, is called
A:
absorptive power
B:
emissive power
C:
emissivity
D:
none of these
Answer: A
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The freezing point of sulphur dioxide is
A:
-56.6°C
B:
-75.2°C
C:
-77.7°C
D:
-135.8°C
Answer: B
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The wet bulb temperature at 100% relative humidity is __________ dry bulb temperature.
A:
same as
B:
lower than
C:
higher than
D:
Answer: A
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