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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Which of the following is not a desirable property of a refrigerant?

Large latent heat
Low boiling point
High risibility with oil
Good electrical conductor

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Refrigeration and Air Conditioning
One tonne of refrigeration (1TR) means that the heat removing capacity is

420 kJ/min
21 kJ/min
620 kJ/min
210 kJ/min

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

Vapour compression
Carnot cycle
Vapour absorption
Electrolux refrigerator

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Refrigeration and Air Conditioning
One ton refrigeration corresponds to

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

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

None of these
Decreases
Remains constant
Increases

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Refrigeration and Air Conditioning
Bell Coleman cycle is a

Reversed Joule cycle
Reversed Rankine cycle
Reversed Otto cycle
Reversed Carnot cycle

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