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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Where does the lowest temperature occur in a vapour compression cycle?

Condenser
Expansion valve
Evaporator
Compressor

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Refrigeration and Air Conditioning
The wet bulb temperature during sensible heating of air

Remains constant
Increases
None of these
Decreases

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Refrigeration and Air Conditioning
The formation of frost on cooling coils in a refrigerator

Increases heat transfer
Reduces power consumption
Improves C.O.P. of the system
Increases power consumption

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Refrigeration and Air Conditioning
In a refrigeration cycle, the flow of refrigerant is controlled by

Condenser
Expansion valve
Evaporator
Compressor

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Refrigeration and Air Conditioning
One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice

In 1 minute
In 1 hour
In 12 hours
In 24 hours

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Refrigeration and Air Conditioning
Superheating in a refrigeration cycle

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

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MORE MCQ ON Refrigeration and Air Conditioning

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