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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
During humidification process, __________ increases.

Specific humidity
Wet bulb temperature
Relative humidity
Dry bulb temperature

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Refrigeration and Air Conditioning
In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is

More than or equal to 3.65 kg
More than 10 kg
Less than 2 kg
There is no such consideration

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Refrigeration and Air Conditioning
Critical pressure of a liquid is the pressure

Above which liquid becomes solid
Above which liquid will remain liquid
Above which liquid becomes gas
Above which liquid becomes vapour

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Refrigeration and Air Conditioning
An important characteristic of absorption system of refrigeration is

cooling below 0°C
quiet operation
noisy operation
very little power consumption

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Refrigeration and Air Conditioning
The freezing point of sulphur dioxide is

-75.2°C
-77.7°C
-56.6°C
-135.8°C

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

Halide torch
Soap and water
All of these
Sulphur sticks

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MORE MCQ ON Refrigeration and Air Conditioning

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