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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The curved lines on a psychrometric chart indicates

Wet bulb temperature
Dry bulb temperature
Relative humidity
Dew point temperature

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Refrigeration and Air Conditioning
In a refrigerating machine, heat rejected is _________ heat absorbed.

Less than
Greater than
Equal to
None of these

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Refrigeration and Air Conditioning
In vapour compression refrigeration system, refrigerant occurs as liquid between

Compressor and evaporator
Condenser and expansion valve
Expansion valve and evaporator
Compressor and condenser

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Refrigeration and Air Conditioning
In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the

Expansion valve to the evaporator
Condenser to the expansion valve
Condenser to the evaporator
Evaporator to the thermostat

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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

3.72 kW
18.6 kW
7.44 kW
1.86 kW

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Refrigeration and Air Conditioning
The specific humidity during dehumidification process

None of these
Decreases
Increases
Remains constant

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MORE MCQ ON Refrigeration and Air Conditioning

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