In a high pressure compressor, the delivery pressure is 1 to 5 bar 5 to 8 bar 8

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Question
In a high pressure compressor, the delivery pressure is
Options
A. 1 to 5 bar
B. 5 to 8 bar
C. 8 to 10 bar
D. 10 to 15 bar

Correct Answer

8 to 10 bar

Compressors, Gas Dynamics and Gas Turbines problems

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2. A turbo-prop is preferred to turbo-jet because
Options
A. it has high propulsive efficiency at high speeds
B. it can fly at super sonic speeds
C. it can fly at high elevations
D. it has high power for take off

3. For minimum work required to compress and deliver a quantity of air by multi-stage compression,
Options
A. the compression ratio in each stage should be same
B. the intercooling should be perfect
C. the workdone in each stage should be same
D. all of the above

4. If the flow of air through the compressor is parallel to its axis, then the compressor is
Options
A. reciprocating compressor
B. centrifugal compressor
C. axial flow compressor
D. turbo-compressor

5. Which of the following statement is correct?
Options
A. The reciprocating compressors are best suited for high pressure and low volume capacity
B. The effect of clearance volume on power consumption is negligible for the same volume of discharge
C. both (a) and (b)
D. none of these

6. In a single stage, single acting reciprocating air compressor without clearance volume, the workdone is maximum during
Options
A. isothermal compression
B. isentropic compression
C. polytropic compression
D. none of these

10. In n₁ and n₂ are the indices of compression for the first and second stage of compression, then the ratio of workdone on the first and second stages (W₁/W₂) with perfect intercoooing is given by
Options
A.
B.
C.
D.

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