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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Absorption system normally uses the following refrigerant

Freon-11
Freon-22
Ammonia
CO2

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

Soap and water
All of these
Sulphur sticks
Halide torch

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is very wet vapour

After passing through the expansion or throttle valve
Before passing through the condenser
Before entering the compressor
After passing through the condenser

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Refrigeration and Air Conditioning
The domestic refrigerator uses following type of compressor

Miniature sealed unit
Centrifugal
Piston type reciprocating
Axial

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Refrigeration and Air Conditioning
Aqua ammonia is used as refrigerant in the following type of refrigeration system

Direct
Compression
Absorption
Indirect

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Refrigeration and Air Conditioning
During dehumidification process, _________ remains constant.

Relative humidity
Wet bulb temperature
Specific humidity
Dry bulb temperature

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MORE MCQ ON Refrigeration and Air Conditioning

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