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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant

depends on other factors
increases
decreases
remains same

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant before passing through the condenser is

Saturated liquid
Dry saturated vapour
Superheated vapour
Wet vapour

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Refrigeration and Air Conditioning
The cooling system used for supersonic aircrafts and rockets is

Bootstrap air cooling system
Reduced ambient air cooling system
Simple air cooling system
Regenerative air cooling system

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Refrigeration and Air Conditioning
The wet bulb temperature at 100% relative humidity is___ dry bulb temperature.

None of the listed here
Higher than
Lower than
Same as

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

56 bars
Slightly above atmospheric pressure
Atmospheric pressure
24 bars

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

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

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MORE MCQ ON Refrigeration and Air Conditioning

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