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Refrigeration and Air Conditioning

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

Dry bulb temperature
Wet bulb temperature
Relative humidity
Specific humidity

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Refrigeration and Air Conditioning
For better C.O.P of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be

Small
Equal
Anything
High

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Refrigeration and Air Conditioning
One tonne of refrigeration (1TR) means that the heat removing capacity is

210 kJ/min
420 kJ/min
21 kJ/min
620 kJ/min

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Refrigeration and Air Conditioning
An evaporator is also known as

Cooling coil
Freezing coil
All of these
Chilling coil

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Refrigeration and Air Conditioning
A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be

1.33
2.33
3.33
4.33

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Refrigeration and Air Conditioning
Freon group of refrigerants are

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

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MORE MCQ ON Refrigeration and Air Conditioning

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