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Refrigeration and Air Conditioning

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

Sulphur sticks
Halide torch
Soap and water
All of these

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Refrigeration and Air Conditioning
In chemical dehumidification process,

Wet bulb temperature decreases
Dew point temperature decreases
All of these
Dry bulb temperature increases

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Refrigeration and Air Conditioning
Most thermostatic expansion valves are set for a superheat of

20°C
5°C
10°C
15°C

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Refrigeration and Air Conditioning
The vapour compression refrigerator employs the following cycle

Reversed Rankine
Rankine
Carnot
Reversed Carnot

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Refrigeration and Air Conditioning
Freon group of refrigerants are

Toxic
Non-inflammable and toxic
Inflammable
Nontoxic and non-inflammable

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Refrigeration and Air Conditioning
Under cooling in a refrigeration cycle

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

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MORE MCQ ON Refrigeration and Air Conditioning

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