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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
For unsaturated air, the dew point temperature is __________ wet bulb temperature.

More than
None of these
Less than
Equal to

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Refrigeration and Air Conditioning
The specific humidity during dehumidification process

Increases
None of these
Decreases
Remains constant

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Refrigeration and Air Conditioning
When the temperature of the surrounding is higher than the temperature of the body, then the heat loss by convection from the body to the surrounding will be

None of the listed here
Positive
Negative
Zero

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Refrigeration and Air Conditioning
During sensible heating of air _________ decreases.

Relative humidity
Wet bulb temperature
Dry bulb temperature
Specific humidity

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Refrigeration and Air Conditioning
The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will

Remain unaffected
Decrease
Increase
May increase or decrease depending on the type of refrigerant used

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Refrigeration and Air Conditioning
The sub-cooling in a refrigeration cycle

Does not alter C.O.P.
Increases C.O.P.
None of these
Decreases C.O.P.

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