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MP Sub-Engineer ME: Compressor Quiz 39
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Question 1
Consider the following statements:
For a large aviation gas turbine, an axial flow compressor is usually preferred over centrifugal compressor because
1) the maximum efficiency is higher.
2) the frontal area is lower
3) the pressure rise per stage is more
4) the cost is lower.
Which of these statements are correct?
For a large aviation gas turbine, an axial flow compressor is usually preferred over centrifugal compressor because
1) the maximum efficiency is higher.
2) the frontal area is lower
3) the pressure rise per stage is more
4) the cost is lower.
Which of these statements are correct?
Question 2
A 3-stage reciprocating compressor has suction pressure of 1 bar delivery pressure of 27 bar. For minimum work of compression, the delivery pressure of 1st stage is
Question 3
For a 2-stage air compressor for the maximum efficiency of compressor, consider the following statements:
1)
2)
3) Intercooling between the stages is complete
4) Work is equally shared by the two stages
Which of these statements are correct?
1)
2)
3) Intercooling between the stages is complete
4) Work is equally shared by the two stages
Which of these statements are correct?
Question 4
In an axial flow compressor, the ratio of pressure rise in the rotor blades to the pressure rise in the compressor in one stage is known as
Question 5
Which one of the following types of compressors is mostly used for supercharging of I.C. engines?
Question 6
In steady-flow compressor, compression occurs by
Question 7
The Roots blower and vane-type compressor are the types of
Question 8
Clearance ratio in reciprocating compressor is given by
Question 9
The temperature after compression is given by _______.
(where n is the polytropic index)
Question 10
Type of compressor used in domestic refrigerator
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