An ideal air compressor cycle without clearance on PV diagram can be represented by following processes

A. One adiabatic, two isobaric, and one constant volume

B. Two adiabatic and two isobaric

C. Two adiabatic, one isobaric and one constant volume

D. One adiabatic, one isobaric and two constant volumes

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  2. The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is…
  3. For perfect intercooling in a two stage compressor
  4. The volumetric efficiency for reciprocating air compressors is about
  5. In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to
  6. Cylinder clearance in a compressor should be
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  14. Volumetric efficiency is
  15. Open cycle gas turbine works on
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  17. Adiabatic compression is one in which
  18. Turbofan engine employs
  19. More than one stage will be preferred for reciprocating compressor if the delivery pressure is more…
  20. Which of the following statement is correct relating to rocket engines?
  21. The efficiency of roots blower ________ with the increase in pressure ratio.
  22. Maximum work is done in compressing air when the compression is
  23. Free air is the air at
  24. In n₁ and n₂ are the indices of compression for the first and second stage of compression,…
  25. The clearance volume of the air compressor is kept minimum because
  26. The pressure of air at the beginning of the compression stroke is ________ the atmospheric pressure.
  27. Inter-cooling in gas turbine results in
  28. The propulsive power of the rocket is (where v₁ = Jet velocity, and v₂ = Aircraft velocity)
  29. In a closed cycle gas turbine, the air is compressed
  30. Which one of the following is the effect of blade shape on performance of a centrifugal compressor?