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Refrigeration and Air Conditioning

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

Ammonia
R-22
R-11
R-12

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Refrigeration and Air Conditioning
The horizontal and non-uniformly spaced lines on a psychrometric chart indicates

Dew point temperature
Specific humidity
Wet bulb temperature
Dry bulb temperature

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Refrigeration and Air Conditioning
The human body feels comfortable when the heat stored in the body is

None of these
Positive
Zero
Negative

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Refrigeration and Air Conditioning
For better C.O.P of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be

High
Anything
Small
Equal

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

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

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

All of these
Domestic refrigerators
Room air conditioners
Water coolers

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MORE MCQ ON Refrigeration and Air Conditioning

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