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Refrigeration and Air Conditioning

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

CO?
All of these
R-12
Ammonia

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Refrigeration and Air Conditioning
The advantage of dry compression is that

It results in high volumetric and mechanical efficiency
It permits complete evaporation in the evaporator
All of these
It permits higher speeds to be used

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Refrigeration and Air Conditioning
In order to collect liquid refrigerant and to prevent it from going to a ________, a device known as accumulator is used at the suction of compressor.

Compressor
Evaporator
Condenser
Expansion valve

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Refrigeration and Air Conditioning
The specific humidity during humidification process

Remains constant
Decreases
Increases
None of these

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Refrigeration and Air Conditioning
The coefficient of performance of a domestic refrigerator is ________ as compared to a domestic air-conditioner.

Less
Same
More
None of these

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Refrigeration and Air Conditioning
In mechanical refrigeration system, the refrigerant has the maximum temperature

In evaporator
Between condenser and evaporator
Before expansion valve
Between compressor and condenser

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MORE MCQ ON Refrigeration and Air Conditioning

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