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Refrigeration and Air Conditioning

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

Soap and water
Sulphur sticks
Halide torch
All of these

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Refrigeration and Air Conditioning
In a refrigeration cycle, the flow of refrigerant is controlled by

Compressor
Expansion valve
Evaporator
Condenser

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Refrigeration and Air Conditioning
Which of the following refrigerant has the lowest freezing point?

R-22
R-11
R-12
Ammonia

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Refrigeration and Air Conditioning
The index which correlates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as

Mean radiant temperature
Dew point temperature
None of the listed here
Effective temperature

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Refrigeration and Air Conditioning
Carbon dioxide is

All of the listed here
Non-flammable
Colourless
Odourless

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

40 tons
5 tons
0.1 ton
10 tons

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MORE MCQ ON Refrigeration and Air Conditioning

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