In a centrifugal compressor, the flow of air is ________ to the axis of compressor.

A. Parallel

B. Perpendicular

C. Inclined

D. None of these

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  1. The effective power of gas turbines is increased by adding the following in compressor
  2. When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades…
  3. Isothermal compression though most efficient, but is not practicable because
  4. Inter-cooling in multistage compressors is done
  5. If p₁, is the pressure of air entering the L.P. cylinder and p₂ is the pressure of air…
  6. The axial flow compressor is preferred in aircraft gas turbines because of
  7. Inter-cooling in gas turbine results in
  8. Surging is the phenomenon of
  9. The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor…
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  11. A machine used to raise the pressure of air is called
  12. The air entry velocity m a rocket as compared to aircraft is
  13. In a four stage compressor, if the pressure at the first and third stage is 1 bar and 16 bar, then the…
  14. In air compressors, free air delivery means the
  15. Producer gas is produced by
  16. The ratio of specific weight/h.p. of gas turbine and I.C engines may be typically of the order of
  17. What will be the volume of air at 327°C if its volume at 27°C is 1.5 m³/ mt?
  18. The thrust on the rotor in a centrifugal compressor is produced by
  19. The ratio of work done per cycle to the swept volume in case of compressor is called
  20. In a double acting compressor, the air is compressed
  21. Reciprocating air compressor is best suited for
  22. Pressure ratio in gas turbines is the ratio of
  23. The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)
  24. Phenomenon of choking in compressor means
  25. In a single acting reciprocating air compressor, without clearance, the compression of air may be
  26. Fighter bombers use following type of engine
  27. Volumetric efficiency of a compressor without clearance volume
  28. A centrifugal compressor works on the principle of
  29. The overall isothermal efficiency of compressor is defined as the ratio of
  30. The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ =…