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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Freon group of refrigerants are

Toxic
Inflammable
Nontoxic and non-inflammable
Non-inflammable and toxic

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Refrigeration and Air Conditioning
Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?

Sulphur dioxide
Carbon dioxide
Ammonia
Fluorine

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Refrigeration and Air Conditioning
The optimum effective temperature for human comfort is

Same in winter and summer
Higher in winter than in summer
Lower in winter than in summer
Not dependent on season

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Refrigeration and Air Conditioning
The process, generally used in summer air conditioning to cool and dehumidify the air, is called

Cooling and dehumidification
Heating and humidification
Dehumidification
Humidification

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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

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

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Refrigeration and Air Conditioning
Aqua ammonia is used as refrigerant in the following type of refrigeration system

Indirect
Absorption
Direct
Compression

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MORE MCQ ON Refrigeration and Air Conditioning

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