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

3.72 kW
7.44 kW
18.6 kW
1.86 kW

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Refrigeration and Air Conditioning
Dry bulb temperature is the temperature of air recorded by a thermometer, when

The moisture present in it begins to condense
It is not affected by the moisture present in the air
Its bulb is surrounded by a wet cloth exposed to the air
None of the listed here

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