Mechanical Engineering Questions And Answers :: Compressors: part4



Mechanical Engineering : Compressors QUESTIONS AND ANSWERS :: part4 : 11 to 15

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

11.Maximum delivery pressure is a rotary air compressor is of the order of

6 kg/cm2
10 kg/cm2
16 kg/cm2
25 kg/cm2
40 kg/cm2.

12.The pressure ratio of an ideal vaned compressor with increase in mass flow rate

increases
decreases
remains constant
first decreases and then increases
unpredictable.

13.Gas turbine works on

Brayton or Atkinson cycle
Carnot cycle
Rankine cycle
Erricsson cycle
Joule cycle.

14.The maximum compression ratio in an actual single stage axial flow compressor is of the order of

1 : 1.2
1 : 2
1 : 5
1 : 10
1 : 1

15.Surging is the phenomenon of

air stream blocking the passage
motion of air at sonic velocity
unsteady, periodic and reversed flow
air stream not able to follow the blade contour
production of no air pressure.

More Compressors QUESTIONS AND ANSWERS available in next pages

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