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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The specific humidity during humidification process

None of these
Decreases
Increases
Remains constant

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Refrigeration and Air Conditioning
While designing the refrigeration system of an aircraft, the prime consideration is that the

System has high C.O.P.
Power per TR is low
Mass of the refrigeration equipment is low
Mass of refrigerant circulated in the system is low

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Refrigeration and Air Conditioning
A vapour absorption refrigeration system

Gives quiet operation
Gives noisy operation
Cools below 0°C
Requires little power consumption

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Refrigeration and Air Conditioning
During sensible heating of air _________ decreases.

Specific humidity
Wet bulb temperature
Relative humidity
Dry bulb temperature

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Refrigeration and Air Conditioning
R-12 is generally preferred over R-22 in deep freezers since

It has low operating pressures
It is miscible with oil over large range of temperatures
It gives higher coefficient of performance
All of these

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Refrigeration and Air Conditioning
An Electrolux refrigerator is called a ___ absorption system.

None of the listed here
Two fluids
Single fluid
Three fluids

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