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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Ammonia is

Non-inflammable
Highly toxic and inflammable
Non-toxic
Toxic and non-inflammable

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Refrigeration and Air Conditioning
In mechanical refrigeration system, the refrigerant has the maximum temperature

In evaporator
Between condenser and evaporator
Between compressor and condenser
Before expansion valve

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Refrigeration and Air Conditioning
The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called

None of the listed here
Super-cooling
Sub-cooling or under-cooling
Normal cooling

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Refrigeration and Air Conditioning
Air conditioning means

Cooling
Heating
Dehumidifying
All of these

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Refrigeration and Air Conditioning
If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be

More/less depending on rating
More
Less
Same

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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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