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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
For unsaturated air, the dew point temperature is __________ wet bulb temperature.

More than
Equal to
None of these
Less than

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Refrigeration and Air Conditioning
In a vapour compression cycle, the refrigerant immediately after expansion valve is

Saturated liquid
Sub-cooled liquid
Wet vapour
Liquid

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Refrigeration and Air Conditioning
A vapour absorption refrigerator uses _________ as a refrigerant.

Freon
Ammonia
Water
Aqua-ammonia

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

Dry bulb temperature
Dew point temperature
Specific humidity
Wet bulb temperature

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Refrigeration and Air Conditioning
The difference between dry bulb temperature and dew point temperature, is called

Dry bulb depression
Degree of saturation
Wet bulb depression
Dew point depression

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Refrigeration and Air Conditioning
One ton refrigeration corresponds to

80 kcal/ min
50 kcal/ min
50 kcal/ hr
80 kcal/ hr

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