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Refrigeration and Air Conditioning

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

Same
Less
More or less depending on ambient conditions
More

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Refrigeration and Air Conditioning
In a refrigeration system, the expansion device is connected between the

Receiver and evaporator
Condenser and receiver
Compressor and condenser
Evaporator and compressor

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Refrigeration and Air Conditioning
The lowest thermal diffusivity is of

Iron
Lead
Rubber
Aluminium

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Refrigeration and Air Conditioning
The wet bulb temperature at 100% relative humidity is ________ dew point temperature.

Lower than
Higher than
Same as
None of these

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Refrigeration and Air Conditioning
The temperature of ammonia after compression in a vapour compression system is

70 to 110°C
50 to 70°C
None of these
20 to 50°C

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Refrigeration and Air Conditioning
Moisture in Freon refrigeration system causes

High power consumption
Ineffective refrigeration
Corrosion of whole system
Freezing automatic regulating valve

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MORE MCQ ON Refrigeration and Air Conditioning

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