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

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

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

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

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

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

Ammonia
Sulphur dioxide
Carbon dioxide
R-12

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

Less
Same
More or less depending on ambient conditions
More

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