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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
For obtaining high COP, the pressure range of compressor should be

Any value
High
Optimum
Low

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Refrigeration and Air Conditioning
When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be

Heated and dehumidified
Cooled and dehumidified
Cooled and humidified
Heated and humidified

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Refrigeration and Air Conditioning
The wet bulb temperature at 100% relative humidity is___ dry bulb temperature.

Same as
None of the listed here
Lower than
Higher than

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Refrigeration and Air Conditioning
Highest temperature encountered in refrigeration cycle should be

At critical Temperature
Near critical temperature of refrigerant
Above critical temperature
Much below critical temperature

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Refrigeration and Air Conditioning
Air refrigeration operates on

Brayton cycle
Reversed Carnot cycle
Rankine’s cycle
Carnot cycle

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Refrigeration and Air Conditioning
In a refrigeration system, heat absorbed in comparison to heat rejected is

Same
More
Less
More for small capacity and less for high capacity

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MORE MCQ ON Refrigeration and Air Conditioning

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