Exercise: Heat Transfer Refrigeration And Air Conditioning

Questions for: Heat Transfer Refrigeration And Air Conditioning

The condition of refrigerant after passing through the expansion or throttle valve, in a vapour compression system is
A:
high pressure saturated liquid
B:
wet vapour
C:
very wet vapour
D:
dry vapour
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The thermal diffusivity for gases is generally __________ those for liquids.
A:
equal to
B:
less than
C:
greater than
D:
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
A good refrigerant should have
A:
high latent heat of vaporisation and low freezing point
B:
high operating pressures and low freezing point
C:
high specific volume and high latent heat of vaporisation
D:
low C.O.P. and low freezing point
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
According to Stefan-Boltzmann law, the total radiation from a black body per second per unit area is directly proportional to the
A:
absolute temperature
B:
square of the absolute temperature
C:
cube of the absolute temperature
D:
fourth power of the absolute temperature
Answer: D
No answer description is available. Let's discuss.
📖
📝
💬
👁️
In a boot-strap air evaporative cooling system, the evaporator is provided
A:
between the combustion chamber and the first heat exchanger
B:
between the first heat exchanger and the secondary compressor
C:
between the secondary compressor and the second heat exchanger
D:
between the second heat exchanger and the cooling turbine
Answer: D
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz