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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Most air cooled condensers are designed to operate with a temperature difference of

22°C
5°C
14°C
8°C

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Refrigeration and Air Conditioning
Aqua ammonia is used as refrigerant in the following type of refrigeration system

Indirect
Absorption
Direct
Compression

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Refrigeration and Air Conditioning
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Generator
Absorber and generator
Absorber, generator and liquid pump
Liquid pump

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Refrigeration and Air Conditioning
The boiling point of ammonia is

-33.3°C
-77.7°C
-10.5°C
-30°C

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Refrigeration and Air Conditioning
A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking 1 kW of work input. The refrigerating effect will be

1 kW
2 kW
3 kW
4 kW

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Refrigeration and Air Conditioning
In vapour compression cycle the condition off refrigerant is dry saturated vapour

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

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MORE MCQ ON Refrigeration and Air Conditioning

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