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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
During adiabatic saturation process on unsaturated air ___ remains constant.

Dew point temperature
Relative humidity
Dry bulb temperature
Wet bulb temperature

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Refrigeration and Air Conditioning
Vertical lines on pressure-enthalpy chart show constant

Pressure lines
Entropy lines
Total heat lines
Temperature lines

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Refrigeration and Air Conditioning
In a reversed Brayton cycle, the heat is absorbed by the air during

Constant pressure cooling process
Constant pressure expansion process
Isentropic compression process
Isentropic expansion process

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

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

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Refrigeration and Air Conditioning
The condition of refrigerant after passing through the condenser in a vapour compression system is

Saturated liquid
Wet vapour
Superheated vapour
Dry saturated vapour

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Refrigeration and Air Conditioning
The lowest temperature during the cycle in a vapour compression system occurs after

Compression
Condensation
Evaporation
Expansion

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