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Refrigeration and Air Conditioning

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

Expansion
Compression
Condensation
Evaporation

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Refrigeration and Air Conditioning
The temperature of air recorded by a thermometer, when it is not affected by the moisture present in the air, is called

Dry bulb temperature
Wet bulb temperature
Dew point temperature
None of these

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Refrigeration and Air Conditioning
The dry bulb temperature during sensible heating of air

Increases
Decreases
Remains constant
None of these

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Refrigeration and Air Conditioning
During cooling and dehumidification, dry bulb temperature

None of these
Remains constant
Increases
Decreases

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Refrigeration and Air Conditioning
The operating pressure for refrigerating units using R-12 as a refrigerant is

30 bar
8 bar
2 bar
15 bar

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Refrigeration and Air Conditioning
The temperature of air recorded by a thermometer, when its bulb is surrounded by a wet cloth exposed to the air, is called

Dew point temperature
Wet bulb temperature
None of these
Dry bulb temperature

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