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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant

depends on other factors
remains same
increases
decreases

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Refrigeration and Air Conditioning
Most of the domestic refrigerators work on the following refrigeration system

Carnot cycle
Vapour compression
Vapour absorption
Electrolux refrigerator

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Refrigeration and Air Conditioning
Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system

Ammonia vapours to weak solution
Strong solution to ammonia vapour
Weak solution to strong solution
Strong solution to weak solution

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Refrigeration and Air Conditioning
A bootstrap air cooling system has

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

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Refrigeration and Air Conditioning
In a pressure enthalpy chart, the space to the left of the saturated liquid line represents

Sub-cooled liquid region
Superheated vapour region
Wet vapour region
None of the listed here

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

Expansion valve
Condenser
Compressor
Evaporator

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MORE MCQ ON Refrigeration and Air Conditioning

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