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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Absorption system normally uses the following refrigerant

CO2
Ammonia
Freon-11
Freon-22

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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
Carbon dioxide is

Non-flammable
All of the listed here
Colourless
Odourless

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Refrigeration and Air Conditioning
The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to

Orange
Bright green
Yellow
Red

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

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

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Refrigeration and Air Conditioning
The vertical and uniformly spaced lines on a psychrometric chart indicates

Dew point temperature
Specific humidity
Dry bulb temperature
Wet bulb temperature

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MORE MCQ ON Refrigeration and Air Conditioning

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