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Refrigeration and Air Conditioning

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

Compressor
Condenser
Expansion valve
Evaporator

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

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

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Refrigeration and Air Conditioning
During a refrigeration cycle, heat is rejected by the refrigerant in a

Expansion valve
Evaporator
Compressor
Condenser

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Refrigeration and Air Conditioning
In Electrolux refrigerator

Ammonia is absorbed in water
Ammonia evaporates in hydrogen
Hydrogen evaporates in ammonia
Ammonia is absorbed in hydrogen

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Refrigeration and Air Conditioning
The wet bulb temperature at 100% relative humidity is___ dry bulb temperature.

Lower than
None of the listed here
Higher than
Same as

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Refrigeration and Air Conditioning
The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is

18.6 kW
3.72 kW
1.86 kW
7.44 kW

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MORE MCQ ON Refrigeration and Air Conditioning

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