# Mechanical Engineering - Compressors, Gas Dynamics and Gas Turbines

### Exercise :: Compressors, Gas Dynamics and Gas Turbines - Section 1

26.

In axial flow compressor, exit flow angle deviation from the blade angle is a function of

 A. blade camber B. blade camber and incidence angle C. space-chord ratio D. blade camber and space-chord ratio

Explanation:

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27.

Rotary compressors are used for delivering

 A. small quantities of air at high pressures B. large quantities of air at high pressures C. small quantities of air at low pressures D. large quantities of air at low pressures

Explanation:

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28.

Workdone by a two-stage reciprocating air compressor per cycle is equal to the workdone in LP. cylinder and H.P. cylinder.

 A. True B. False

Explanation:

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29.

A rotary compressor is driven by an

 A. electric motor B. engine C. either (a) or (b) D. none of these

Explanation:

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30.

In a centrifugal compressor, an increase in speed at a given pressure ratio causes

 A. increase in flow B. decrease in flow C. increase in efficiency D. increase in flow and decrease in efficiency