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Refrigeration and Air Conditioning

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

Dew point temperature
Wet bulb temperature
Relative humidity
Dry bulb temperature

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Refrigeration and Air Conditioning
Critical temperature is the temperature above which

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

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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
Expansion valve
Condenser
Evaporator

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Refrigeration and Air Conditioning
The bank of tubes at the back of domestic refrigerator is

Evaporator tubes
Refrigerant cooling tubes
Condenser tubes
Capillary tubes

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Refrigeration and Air Conditioning
Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of

1: 9
9: 1
1: 1
1: 3

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Refrigeration and Air Conditioning
Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator.

None of these
Increase
Reduce
Equalize

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MORE MCQ ON Refrigeration and Air Conditioning

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