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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
A vapour absorption refrigeration system

Gives noisy operation
Requires little power consumption
Cools below 0°C
Gives quiet operation

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

Ammonia
Water
Aqua-ammonia
Freon

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Refrigeration and Air Conditioning
One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice

In 12 hours
In 1 minute
In 1 hour
In 24 hours

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Refrigeration and Air Conditioning
Rating of a domestic refrigerator is of the order of

40 tons
5 tons
10 tons
0.1 ton

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Refrigeration and Air Conditioning
Most of the domestic refrigerators work on the following refrigeration system

Vapour absorption
Electrolux refrigerator
Carnot cycle
Vapour compression

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Refrigeration and Air Conditioning
The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases,

Will be higher
Will be lower
May be higher or lower depending upon the nature of non-condensable gases
Will remain unaffected

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MORE MCQ ON Refrigeration and Air Conditioning

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