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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The pressure at the outlet of a refrigerant compressor is called

Suction pressure
Back pressure
Discharge pressure
Critical pressure

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Refrigeration and Air Conditioning
The specific humidity during heating and humidification process.

Increases
None of these
Decreases
Remains constant

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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

Small
High
Equal
Anything

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Refrigeration and Air Conditioning
The humidification process, on the psychrometric chart is shown by

Curved line
Inclined line
Vertical line
Horizontal line

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Refrigeration and Air Conditioning
Ammonia absorption refrigeration cycle requires

Maximum work input
Very little work input
Zero work input
Nearly same work input as for vapour compression cycle

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Refrigeration and Air Conditioning
A vapour absorption refrigeration system

Requires little power consumption
Gives quiet operation
Cools below 0°C
Gives noisy operation

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MORE MCQ ON Refrigeration and Air Conditioning

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