Refrigeration and Air Conditioning
Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system

Strong solution to weak solution
Weak solution to strong solution
Ammonia vapours to weak solution
Strong solution to ammonia vapour

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Refrigeration and Air Conditioning
Dry bulb temperature is the temperature of air recorded by a thermometer, when

None of the listed here
The moisture present in it begins to condense
Its bulb is surrounded by a wet cloth exposed to the air
It is not affected by the moisture present in the air

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Refrigeration and Air Conditioning
For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then

Perfectly tight vapour seal should be used
Refrigerant with lower evaporation temperature should be used
Bigger cabinet should be used
Smaller cabinet should be used

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