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
Bigger cabinet should be used
Refrigerant with lower evaporation temperature should be used
Smaller cabinet should be used

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Refrigeration and Air Conditioning
A refrigeration system

Rejects energy to a low temperature body
None of the listed here
Removes heat from a high temperature body and delivers it to a low temperature body
Removes heat from a low temperature body and delivers it to a high temperature body

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Refrigeration and Air Conditioning
In a saturated air-water vapour mixture, the

Dry bulb temperature is higher than wet bulb temperature
Dry bulb temperature is higher than dew point temperature
Dew point temperature is lower than wet bulb temperature
Dry bulb, wet bulb and dew point temperature are same

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