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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of

Copper
Aluminium
Steel
Brass

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Refrigeration and Air Conditioning
The undesirable property of a refrigerant is

Non-flammable
Non-toxic
Non-explosive
High boiling point

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Refrigeration and Air Conditioning
The pressure at the inlet of a refrigerant compressor is called

Critical pressure
Suction pressure
Discharge pressure
Back pressure

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

Sulphur sticks
All of these
Halide torch
Soap and water

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Refrigeration and Air Conditioning
The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which each constituent would exert, if it occupied the same space by itself. This statement is called

Kinetic theory of gases
Newton's law of gases
Avogadro's hypothesis
Dalton's law of partial pressures

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Refrigeration and Air Conditioning
Ammonia is

Non-toxic
Non-inflammable
Toxic and non-inflammable
Highly toxic and inflammable

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MORE MCQ ON Refrigeration and Air Conditioning

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