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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
In S.J. unit, one ton of refrigeration is equal to

840 kJ/ min
420 kJ/ min
210 kJ/ min
21 kJ/ min

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

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

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Refrigeration and Air Conditioning
Which of the following cycles uses air as the refrigerant?

Stirling
Carnot
Bell Coleman
Ericson

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Refrigeration and Air Conditioning
The humidification process, on the psychrometric chart is shown by

Inclined line
Horizontal line
Vertical line
Curved line

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Refrigeration and Air Conditioning
The advantage of dry compression is that

It permits higher speeds to be used
All of these
It results in high volumetric and mechanical efficiency
It permits complete evaporation in the evaporator

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Refrigeration and Air Conditioning
For better C.O.P of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be

Anything
High
Equal
Small

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MORE MCQ ON Refrigeration and Air Conditioning

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