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Refrigeration and Air Conditioning

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

Specific humidity
Dry bulb temperature
Wet bulb temperature
Relative humidity

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Refrigeration and Air Conditioning
One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice

In 1 hour
In 24 hours
In 12 hours
In 1 minute

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Refrigeration and Air Conditioning
Freon group of refrigerants are

Toxic
Inflammable
Nontoxic and non-inflammable
Non-inflammable and toxic

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Refrigeration and Air Conditioning
At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant

remains same
decreases
depends on other factors
increases

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Refrigeration and Air Conditioning
The formation of frost on cooling coils in a refrigerator

Increases power consumption
Increases heat transfer
Reduces power consumption
Improves C.O.P. of the system

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Refrigeration and Air Conditioning
An evaporator is also known as

Chilling coil
Freezing coil
Cooling coil
All of these

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MORE MCQ ON Refrigeration and Air Conditioning

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