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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
Steel
Copper

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Refrigeration and Air Conditioning
The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which each constituent would exert, if it occupied the same space by itself. This statement is called

Kinetic theory of gases
Newton's law of gases
Avogadro's hypothesis
Dalton's law of partial pressures

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Refrigeration and Air Conditioning
The suction pipe diameter of refrigerating unit compressor in comparison to delivery side is

Equal
Bigger
Smaller
Smaller/bigger depending on capacity

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

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

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

Evaporator
Compressor
Expansion valve
Condenser

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Refrigeration and Air Conditioning
In mechanical refrigeration system, the refrigerant has the maximum temperature

Before expansion valve
Between condenser and evaporator
Between compressor and condenser
In evaporator

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MORE MCQ ON Refrigeration and Air Conditioning

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