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Compressors, Gas Dynamics and Gas Turbines

31.

The volumetric efficiency for reciprocating air compressors is about

Answer: B

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32.

In a centrifugal compressor, the flow of air is __________ to the axis of compressor.

Answer: B

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33.

The maximum delivery pressure in a rotary air compressor is

Answer: D

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34.

In a single acting reciprocating air compressor, without clearance, the compression of air may be

Answer: A

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Answer: D

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36.

In a single stage, single acting reciprocating air compressor without clearance volume, the workdone is maximum during

Answer: C

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37.

Which of the following bladings will give maximum pressure rise in a centrifugal compressor, assuming the same overall dimensions, blade inlet angle and rotational speeds ?

Answer: A

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Answer: C

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Answer: A

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40.

The gas in cooling chamber of a closed cycle gas turbine is cooled at

Answer: C

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