Refrigeration and Air Conditioning
The bypass factor for a cooling coil

May increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering
Remains unchanged with increase in velocity of air passing through it
Increases with increase in velocity of air passing through it
Decreases with increase in velocity of air passing through it

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

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

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