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Refrigeration and Air Conditioning

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

Sulphur sticks
Halide torch
All of these
Soap and water

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Refrigeration and Air Conditioning
The specific humidity during humidification process

Remains constant
None of these
Increases
Decreases

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

Wet bulb temperature
Specific humidity
Relative humidity
Dry bulb temperature

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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
Isentropic compression process
Constant pressure expansion process
Isentropic expansion process

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Refrigeration and Air Conditioning
The suction pipe diameter of refrigerating unit compressor in comparison to delivery side is

Bigger
Smaller/bigger depending on capacity
Smaller
Equal

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Refrigeration and Air Conditioning
The wet bulb temperature at 100% relative humidity is___ dry bulb temperature.

None of the listed here
Higher than
Lower than
Same as

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