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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?

Sulphur dioxide
Fluorine
Ammonia
Carbon dioxide

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Refrigeration and Air Conditioning
An important characteristic of absorption system of refrigeration is

noisy operation
cooling below 0°C
very little power consumption
quiet operation

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Refrigeration and Air Conditioning
Ammonia absorption refrigeration cycle requires

Nearly same work input as for vapour compression cycle
Very little work input
Zero work input
Maximum work input

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Refrigeration and Air Conditioning
The desirable property of a refrigerant is

High critical temperature
All of these
High latent heat of vaporisation
Low boiling point

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Refrigeration and Air Conditioning
The reduced ambient air cooling system has

Two cooling turbines and one heat exchanger
One cooling turbine and one heat exchanger
One cooling turbine and two heat exchangers
Two cooling turbines and two heat exchangers

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Refrigeration and Air Conditioning
Air refrigerator works on

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

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MORE MCQ ON Refrigeration and Air Conditioning

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