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REFRIGERATION AND AIR CONDITIONING

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

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

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant is dry saturated vapour

Before entering the condenser
After leaving the condenser
After leaving the compressor
Before entering the compressor

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Refrigeration and Air Conditioning
In vapour compression cycle the condition off refrigerant is dry saturated vapour

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

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Refrigeration and Air Conditioning
The refrigerant used in small tonnage commercial machines (hermetically sealed units) is

Carbon dioxide
R-12
Ammonia
Sulphur dioxide

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Refrigeration and Air Conditioning
The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is

Same
More
More or less depending on ambient conditions
Less

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