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Refrigeration and Air Conditioning

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

Specific humidity
Wet bulb temperature
Dry bulb temperature
Dew point temperature

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Refrigeration and Air Conditioning
The boiling point of ________ is 10.5°C.

R-12
Sulphur dioxide
Ammonia
Carbon dioxide

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Refrigeration and Air Conditioning
The evaporator used in household refrigerators is

None of these
Frosting evaporator
Non-frosting evaporator
Defrosting evaporator

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Refrigeration and Air Conditioning
In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be

High, of the order of 25°
As low as possible (3 to 11°C)
Any value
Zero

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Refrigeration and Air Conditioning
The unit of thermal diffusivity is

m²/hK
m/h
m/hK
m²/h

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Refrigeration and Air Conditioning
In a refrigeration system, the expansion device is connected between the

Condenser and receiver
Compressor and condenser
Receiver and evaporator
Evaporator and compressor

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MORE MCQ ON Refrigeration and Air Conditioning

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