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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The difference between dry bulb temperature and dew point temperature, is called

Degree of saturation
Dry bulb depression
Wet bulb depression
Dew point depression

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Refrigeration and Air Conditioning
Under cooling in a refrigeration cycle

Decreases C.O.P
Increases C.O.P
Other factors decide C.O.P
O.P remains unaltered

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Refrigeration and Air Conditioning
A vapour absorption refrigeration system

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

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Refrigeration and Air Conditioning
The curved lines on a psychrometric chart indicates

Relative humidity
Wet bulb temperature
Dew point temperature
Dry bulb temperature

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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 humidified
Cooled and dehumidified
Heated and humidified

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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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