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Refrigeration and Air Conditioning

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

Soap and water
Halide torch
All of these
Sulphur sticks

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Refrigeration and Air Conditioning
An evaporator is also known as

Chilling coil
Cooling coil
All of these
Freezing coil

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Refrigeration and Air Conditioning
The heat rejection factor (HRF) is given by

1 + (1/C.O.P)
1 - C.O.P.
1 - (1/C.O.P)
1 + C.O.P

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Refrigeration and Air Conditioning
The lowest thermal diffusivity is of

Aluminium
Rubber
Iron
Lead

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

Back pressure
Critical pressure
Suction pressure
Discharge pressure

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Refrigeration and Air Conditioning
The boiling point of ammonia is

-33.3°C
-10.5°C
-77.7°C
-30°C

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MORE MCQ ON Refrigeration and Air Conditioning

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