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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
Soap and water
All of these
Halide torch

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Refrigeration and Air Conditioning
In a domestic vapour compression refrigerator, the refrigerant commonly used is

R-12
CO?
All of these
Ammonia

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Refrigeration and Air Conditioning
In a reversed Brayton cycle, the heat is absorbed by the air during

Constant pressure cooling process
Constant pressure expansion process
Isentropic compression process
Isentropic expansion process

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Refrigeration and Air Conditioning
The cooling system used for supersonic aircrafts and rockets is

Reduced ambient air cooling system
Regenerative air cooling system
Bootstrap air cooling system
Simple air cooling system

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

Condenser
Expansion valve
Evaporator
Compressor

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Refrigeration and Air Conditioning
In aircraft, air refrigeration Cycle is used because of

Low temperature at high altitudes
High heat transfer rate
Low weight per tonne of refrigeration
Higher coefficient of performance

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MORE MCQ ON Refrigeration and Air Conditioning

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