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Refrigeration and Air Conditioning

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

Ammonia
Fluorine
Carbon dioxide
Sulphur dioxide

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Refrigeration and Air Conditioning
In a refrigeration cycle, the flow of refrigerant is controlled by

Expansion valve
Condenser
Compressor
Evaporator

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Refrigeration and Air Conditioning
The condition of refrigerant after passing through the condenser in a vapour compression system is

Wet vapour
Saturated liquid
Dry saturated vapour
Superheated vapour

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Refrigeration and Air Conditioning
Presence of moisture in a refrigerant affects the working of

Expansion valve
Evaporator
Condenser
Compressor

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Refrigeration and Air Conditioning
Reducing suction pressure in refrigeration cycle

Lowers evaporation temperature
Lowers compressor capacity because vapour is lighter
All of these
Increases power required per ton of refrigeration

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Refrigeration and Air Conditioning
Most of the domestic refrigerators work on the following refrigeration system

Electrolux refrigerator
Carnot cycle
Vapour compression
Vapour absorption

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MORE MCQ ON Refrigeration and Air Conditioning

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