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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The C.O.P. of a heat pump working on a reversed Carnot cycle is

T₂/(T₂ - T₁)
(T₂ - T₁)/T₁
(T₁ - T₂)/T₁
T₁/(T₂ - T₁)

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Refrigeration and Air Conditioning
Moisture should be removed from refrigerants to avoid

Corrosion of steel plates
Restriction to refrigerant flow
Freezing at the expansion valve
All of these

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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
Generator
Absorber, generator and liquid pump
Absorber and generator

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Refrigeration and Air Conditioning
The dry bulb temperature during sensible heating of air

None of these
Decreases
Remains constant
Increases

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is saturated liquid

After passing through the expansion throttle valve
Before entering the expansion valve
After passing through the condenser
Before passing through the condenser

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Refrigeration and Air Conditioning
Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?

Ammonia
Carbon dioxide
Fluorine
Sulphur dioxide

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MORE MCQ ON Refrigeration and Air Conditioning

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