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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The capacity of a domestic refrigerator is in the range of

5 to 7 TR
3 to 5 TR
0.1 to 0.3 TR
1 to 3 TR

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Refrigeration and Air Conditioning
The advantage of dry compression is that

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

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Refrigeration and Air Conditioning
Aqua ammonia is used as refrigerant in the following type of refrigeration system

Compression
Direct
Indirect
Absorption

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Refrigeration and Air Conditioning
In chemical dehumidification process,

Dew point temperature decreases
Dry bulb temperature increases
Wet bulb temperature decreases
All of these

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Refrigeration and Air Conditioning
The specific humidity during dehumidification process

Decreases
Remains constant
None of these
Increases

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Refrigeration and Air Conditioning
R-12 is generally preferred over R-22 in deep freezers since

It is miscible with oil over large range of temperatures
It has low operating pressures
It gives higher coefficient of performance
All of these

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MORE MCQ ON Refrigeration and Air Conditioning

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