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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of

Aluminium
Copper
Steel
Brass

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Refrigeration and Air Conditioning
In a pressure enthalpy chart, the space to the left of the saturated liquid line represents

Superheated vapour region
Wet vapour region
Sub-cooled liquid region
None of the listed here

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Refrigeration and Air Conditioning
The specific humidity during dehumidification process

Remains constant
Decreases
None of these
Increases

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Refrigeration and Air Conditioning
One tonne of refrigeration (1TR) means that the heat removing capacity is

420 kJ/min
210 kJ/min
620 kJ/min
21 kJ/min

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Refrigeration and Air Conditioning
The coefficient of performance of a domestic refrigerator is ________ as compared to a domestic air-conditioner.

More
None of these
Same
Less

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Refrigeration and Air Conditioning
For unsaturated air, the dew point temperature is __________ wet bulb temperature.

None of these
Less than
Equal to
More than

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MORE MCQ ON Refrigeration and Air Conditioning

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