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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The capacity of a domestic refrigerator is in the range of

0.1 to 0.3 TR
5 to 7 TR
3 to 5 TR
1 to 3 TR

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Refrigeration and Air Conditioning
In a refrigeration system, heat absorbed in comparison to heat rejected is

More
Less
More for small capacity and less for high capacity
Same

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Refrigeration and Air Conditioning
The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature)

(T₁ - T₂)/T₁
(T₂ - T₁)/T₁
T₁ / (T₂ - T₁)
T₂/ (T₂ - T₁)

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Refrigeration and Air Conditioning
Most air cooled condensers are designed to operate with a temperature difference of

8°C
14°C
22°C
5°C

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Refrigeration and Air Conditioning
The mass of water vapour present in __________ is called absolute humidity.

1 m3 of dry air
1 m3 of water
1 kg of wet air
1 kg of dry air

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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

Red
Bright green
Orange
Yellow

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MORE MCQ ON Refrigeration and Air Conditioning

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