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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
A vapour absorption refrigeration system

Gives noisy operation
Requires little power consumption
Gives quiet operation
Cools below 0°C

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Refrigeration and Air Conditioning
The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C. The air leaves the heating coil at 25°C. The bypass factor of the heating coil is

0.67
0.4
0.6
0.376

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Refrigeration and Air Conditioning
Condensing temperature in a refrigerator is the temperature

Of cooling medium
Of freezing zone
Of evaporator
At which refrigerant gas becomes liquid

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Refrigeration and Air Conditioning
The minimum temperature to which water can be cooled in a cooling tower is

Wet bulb temperature of air
Ambient air temperature
Dew point temperature of air
Dry bulb temperature of air

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Refrigeration and Air Conditioning
The cooling system used for supersonic aircrafts and rockets is

Simple air cooling system
Bootstrap air cooling system
Reduced ambient air cooling system
Regenerative air cooling system

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Refrigeration and Air Conditioning
Air refrigerator works on

Bell Coleman cycle
Both (A) and (B)
Reversed Carnot cycle
None of these

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MORE MCQ ON Refrigeration and Air Conditioning

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