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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
A refrigerant with the highest critical pressure is

R-22
Ammonia
R-11
R-12

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Refrigeration and Air Conditioning
The capillary tube, as an expansion device, is used in

Domestic refrigerators
Water coolers
Room air conditioners
All of these

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Refrigeration and Air Conditioning
The condition of refrigerant as it leaves the compressor in a vapour compression system is

Wet vapour
Saturated liquid
Superheated vapour
Dry saturated vapour

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Refrigeration and Air Conditioning
In vapour compression refrigeration system, refrigerant occurs as liquid between

Compressor and evaporator
Condenser and expansion valve
Expansion valve and evaporator
Compressor and condenser

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Refrigeration and Air Conditioning
In air-conditioning of aeroplanes, using air as a refrigerant, the cycle used is

Reversed Brayton cycle
Reversed Joule cycle
Reversed Otto cycle
Reversed Carnot cycle

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Refrigeration and Air Conditioning
The evolution of heat of solution takes place in ammonia absorption plant when

Lithium bromide mixes with ammonia
Ammonia vapour is driven out of solution
Ammonia vapour goes into solution
Weak solution mixes with strong solution

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MORE MCQ ON Refrigeration and Air Conditioning

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