ISRO Technician-B MRAC Question Paper - 2019 (Set-1) with Answer Key

ISRO Technician-B MRAC Question Paper - 2019 (Set-1) with Answer Key

16) A mixture of dry air and water vapour, at a condition when the air has diffused the maximum amount of water vapour into it, is called

Answer is:

Saturated air

17) Environmental protection agencies advice against the use of CFC refrigerants because

Answer is:

These react with ozone layer and causes its depletion

18) One tonne of refrigeration (1TR) means that the heat removing capacity is

Answer is:

210kJ/min

Explanation:

One tonne of refrigeration (1TR) means that the heat removing capacity is 210kJ/min.

19) The humidification process on the psychometric chart is shown by

Answer is:

Vertical line

20) The ratio of heat extracted in the refrigerator to the work-done on the refrigerant is called

Answer is:

Coefficient of performance of refrigeration

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