Mechanical Engineering - Compressors, Gas Dynamics and Gas Turbines

Exercise :: Compressors, Gas Dynamics and Gas Turbines - Section 3

31. 

The volume of air delivered in a medium capacity air compressor per unit time is

A. 0.1 to 1.2 m3/s
B. 0.15 to 5 m3/s
C. above 5 m3/s
D. none of these

Answer: Option B

Explanation:

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32. 

In a closed cycle gas turbine, the air is compressed

A. isothermally
B. polytropically
C. isentropically
D. none of these

Answer: Option C

Explanation:

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33. 

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

A. isothermal compression
B. isentropic compression
C. polytropic compression
D. none of these

Answer: Option A

Explanation:

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34. 

A simple turbo-jet engine is basically a gas turbine engine equipped with a propulsive nozzle and diffuser.

A. Agree
B. Disagree

Answer: Option A

Explanation:

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35. 

If the flow of air through the compressor is parallel to its axis, then the compressor is

A. reciprocating compressor
B. centrifugal compressor
C. axial flow compressor
D. turbo-compressor

Answer: Option C

Explanation:

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