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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
During a refrigeration cycle, heat is rejected by the refrigerant in a

Compressor
Expansion valve
Evaporator
Condenser

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Refrigeration and Air Conditioning
In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)

1/ B.P.F.
1 + B.P.F.
P.F. - 1
1 - B. P.F.

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Refrigeration and Air Conditioning
In aqua ammonia and Lithium bromide water absorption refrigeration systems, the refrigerants are respectively

Water and water
Water and lithium bromide
Ammonia and water
Ammonia and lithium bromide

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Refrigeration and Air Conditioning
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Liquid pump
Absorber and generator
Generator
Absorber, generator and liquid pump

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Refrigeration and Air Conditioning
In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is

More than 10 kg
More than or equal to 3.65 kg
There is no such consideration
Less than 2 kg

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Refrigeration and Air Conditioning
Which of the following is not a desirable property of a refrigerant?

High risibility with oil
Good electrical conductor
Large latent heat
Low boiling point

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MORE MCQ ON Refrigeration and Air Conditioning

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