Exercise: Heat Transfer Refrigeration And Air Conditioning

Questions for: Heat Transfer Refrigeration And Air Conditioning

In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s. The sensible heat factor for the process will be
A:
0.3
B:
0.6
C:
0.67
D:
1.5
Answer: B
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Which of the following represents a heat pump?
A:
B:
C:
D:
Answer: B
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The total radiation from a black body per second per unit area is __________ fourth power of the absolute temperature. This statement is known as Stefan-Boltzmann law.
A:
equal to
B:
directly proportional to
C:
inversely proportional to
D:
Answer: B
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The condition of refrigerant after leaving the compressor and before entering the condenser is superheated vapour.
A:
Yes
B:
No
C:
D:
Answer: A
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Thermal diffusivity is a
A:
function of temperature
B:
physical property of a substance
C:
dimensionless parameter
D:
all of these
Answer: B
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