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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Freon group of refrigerants are

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

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Refrigeration and Air Conditioning
The reduced ambient air cooling system has

Two cooling turbines and two heat exchangers
Two cooling turbines and one heat exchanger
One cooling turbine and one heat exchanger
One cooling turbine and two heat exchangers

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Refrigeration and Air Conditioning
During dehumidification process, _________ remains constant.

Wet bulb temperature
Dry bulb temperature
Relative humidity
Specific humidity

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Refrigeration and Air Conditioning
During a refrigeration cycle, heat is rejected by the refrigerant in a

Expansion valve
Evaporator
Condenser
Compressor

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Refrigeration and Air Conditioning
The power per tonne of refrigeration is

None of these
3.5 × C.O.P.
O.P/3.5
3.5/C.O.P.

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Refrigeration and Air Conditioning
Vertical lines on pressure-enthalpy chart show constant

Entropy lines
Temperature lines
Pressure lines
Total heat lines

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MORE MCQ ON Refrigeration and Air Conditioning

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