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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The material of pipe lines for a system using Freon as a refrigerant should be

Brass
Aluminium
Copper
Steel

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Refrigeration and Air Conditioning
Chaperon equation is a relation between

Specific volume and enthalpy
Temperature, pressure, specific volume and enthalpy
Temperature, pressure and enthalpy
Temperature and enthalpy

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Refrigeration and Air Conditioning
The relative coefficient of performance is

Actual COP × theoretical COP
None of these
Theoretical COP/actual COP
Actual COP/theoretical COP

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Refrigeration and Air Conditioning
The wet bulb temperature during sensible cooling of air

Remains constant
Decreases
None of these
Increases

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Refrigeration and Air Conditioning
The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P.

Equally
Unpredictable
Less
More

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Refrigeration and Air Conditioning
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Liquid pump
Absorber, generator and liquid pump
Generator
Absorber and generator

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MORE MCQ ON Refrigeration and Air Conditioning

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