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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
For large tonnage (more than 200 TR) air-conditioning applications, the compressor recommended is

Reciprocating
Screw
Centrifugal
Rotating

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Refrigeration and Air Conditioning
Critical temperature is the temperature above which

A gas will never liquefy
A gas will immediately liquefy
Water will never evaporate
Water will evaporate

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Refrigeration and Air Conditioning
The curved lines on a psychrometric chart indicates

Relative humidity
Wet bulb temperature
Dry bulb temperature
Dew point temperature

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Refrigeration and Air Conditioning
For obtaining high COP, the pressure range of compressor should be

Low
Optimum
Any value
High

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Refrigeration and Air Conditioning
The air cooling system mostly used in transport type aircrafts is

Bootstrap air cooling system
All of the listed here
Simple evaporative air cooling system
Simple air cooling system

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

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

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MORE MCQ ON Refrigeration and Air Conditioning

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