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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Allowable pressure on high pressure side or ammonia absorption system is of the order of

Slightly above atmospheric pressure
56 bars
24 bars
Atmospheric pressure

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Refrigeration and Air Conditioning
The suction pipe diameter of refrigerating unit compressor in comparison to delivery side is

Bigger
Smaller/bigger depending on capacity
Smaller
Equal

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Refrigeration and Air Conditioning
The central air conditioning system has ___________ overall efficiency as compared to individual systems.

Same
None of these
Higher
Lower

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Refrigeration and Air Conditioning
The specific humidity during humidification process

None of these
Remains constant
Increases
Decreases

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Refrigeration and Air Conditioning
The reduced ambient air cooling system has

One cooling turbine and one heat exchanger
One cooling turbine and two heat exchangers
Two cooling turbines and two heat exchangers
Two cooling turbines and one heat exchanger

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Refrigeration and Air Conditioning
The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents

Metering of the refrigerant liquid
Compression of the refrigerant vapour
Condensation of the refrigerant vapour
Evaporation of the refrigerant liquid

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MORE MCQ ON Refrigeration and Air Conditioning

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