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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Cooling water is required for following equipment in ammonia absorption plant

Condenser
Condenser, absorber and separator (rectifier)
Evaporator
Absorber

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Refrigeration and Air Conditioning
While designing the refrigeration system of an aircraft, the prime consideration is that the

System has high C.O.P.
Power per TR is low
Mass of the refrigeration equipment is low
Mass of refrigerant circulated in the system is low

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Refrigeration and Air Conditioning
During a refrigeration cycle, heat is rejected by the refrigerant in a

Evaporator
Compressor
Condenser
Expansion valve

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

All of these
Halide torch
Soap and water
Sulphur sticks

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Refrigeration and Air Conditioning
The sub-cooling in a refrigeration cycle

Does not alter C.O.P.
None of these
Increases C.O.P.
Decreases C.O.P.

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Refrigeration and Air Conditioning
The refrigerant used in small tonnage commercial machines (hermetically sealed units) is

Sulphur dioxide
Carbon dioxide
Ammonia
R-12

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MORE MCQ ON Refrigeration and Air Conditioning

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