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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
A bootstrap air cooling system has

One heat exchanger
Three heat exchangers
Two heat exchangers
Four heat exchangers

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Refrigeration and Air Conditioning
The relative coefficient of performance is equal to

(Actual C.O.P.) /(Theoretical C.O.P.)
(Actual C.O.P.) × (Theoretical C.O.P.)
None of these
(Theoretical C.O.P.)/ (Actual C.O.P.)

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Refrigeration and Air Conditioning
The specific humidity during dehumidification process

Increases
Remains constant
None of these
Decreases

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Refrigeration and Air Conditioning
The reduced ambient air cooling system has

Two cooling turbines and one heat exchanger
One cooling turbine and two heat exchangers
Two cooling turbines and two heat exchangers
One cooling turbine and one heat exchanger

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Refrigeration and Air Conditioning
The lowest thermal diffusivity is of

Lead
Rubber
Aluminium
Iron

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Refrigeration and Air Conditioning
In a domestic vapour compression refrigerator, the refrigerant commonly used is

Ammonia
All of these
R-12
CO?

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MORE MCQ ON Refrigeration and Air Conditioning

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