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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
During cooling and dehumidification, dry bulb temperature

None of these
Remains constant
Increases
Decreases

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Refrigeration and Air Conditioning
The freezing point of sulphur dioxide is

-75.2°C
-56.6°C
-135.8°C
-77.7°C

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Refrigeration and Air Conditioning
Under cooling in a refrigeration cycle

Other factors decide C.O.P
O.P remains unaltered
Decreases C.O.P
Increases C.O.P

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Refrigeration and Air Conditioning
In S.J. unit, one ton of refrigeration is equal to

210 kJ/ min
840 kJ/ min
420 kJ/ min
21 kJ/ min

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Refrigeration and Air Conditioning
The leakage in a refrigeration system using Freon is detected by

Soap and water
Halide torch
All of these
Sulphur sticks

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Refrigeration and Air Conditioning
The lowest temperature during the cycle in a vapour compression system occurs after

Expansion
Evaporation
Compression
Condensation

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MORE MCQ ON Refrigeration and Air Conditioning

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