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Refrigeration and Air Conditioning

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

Piston type reciprocating
Centrifugal
Axial
Miniature sealed unit

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Refrigeration and Air Conditioning
In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s. The sensible heat factor for the process will be

0.67
1.5
0.6
0.3

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Refrigeration and Air Conditioning
Wet bulb temperature is the temperature of air recorded by a thermometer, when

It is not affected by the moisture present in the air
None of these
The moisture present in it begins to condense
Its bulb is surrounded by a wet cloth exposed to the air

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Refrigeration and Air Conditioning
In Electrolux refrigerator

Ammonia is absorbed in hydrogen
Ammonia evaporates in hydrogen
Hydrogen evaporates in ammonia
Ammonia is absorbed in water

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Refrigeration and Air Conditioning
Chaperon equation is applicable for registration at

Saturation point of liquid
Saturation point of vapour
Sublimation temperature
Triple point

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Refrigeration and Air Conditioning
The capillary tube, as an expansion device, is used in

Water coolers
Domestic refrigerators
All of these
Room air conditioners

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MORE MCQ ON Refrigeration and Air Conditioning

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