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The compressed air may be used

A. In gas turbine plants

B. For operating pneumatic drills

C. In starting and supercharging of I.C. engines

D. All of the above

Correct Answer : D.


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  1. Gas turbines for power generation are normally used
  2. A jet engine works on the principle of conservation of
  3. A rocket engine uses ________ for the combustion of its fuel.
  4. The performance of air compressor at high altitudes will be ________ as compared to that at sea level.
  5. In a centrifugal compressor, the flow of air is ________ to the axis of compressor.
  6. In a high pressure compressor, the delivery pressure is
  7. Compression efficiency is compared against
  8. In open cycle turbojet engines used in military aircraft, reheating the exhaust gas from the turbine…
  9. A closed gas turbine in which fuel is burnt directly in the air is not possible because of
  10. Standard air is the air at ________ and relative humidity of 36 percent.
  11. The clearance volume of the air compressor is kept minimum because
  12. An aftercooler is used to
  13. The volumetric efficiency of a compressor
  14. In air breathing jet engine, the jet is formed by expanding
  15. The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in…
  16. The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation
  17. Reheating in multistage expansion gas turbine results in
  18. Pick up the false statement
  19. Maximum delivery pressure is a rotary air compressor is of the order of
  20. Choose the correct statement
  21. The volume of air sucked by the compressor during its suction stroke is called
  22. In a single stage, single acting reciprocating air compressor, without clearance volume, the workdone…
  23. The power available for takeoff and climb in case of turbojet engine as compared to reciprocating engine…
  24. The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ =…
  25. The volume of air delivered by the compressor is called
  26. Volumetric efficiency is
  27. The maximum compression ratio in an actual single stage axial flow compressor is of the order of
  28. For perfect intercooling in a three stage compressor
  29. Which is false statement about advantages of multistage compressor in comparison to single stage compressor?
  30. An ideal air compressor cycle with clearance on PV diagram can be represented by following processes