The effective power of gas turbines is increased by adding the following in compressor

A. Ammonia and water vapour

B. Carbon dioxide

C. Nitrogen

D. Hydrogen

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  1. Which of the following statement is wrong?
  2. Aeroplanes employ following type of compressor
  3. If p₁ is the pressure of air entering the L.P, cylinder and p₃ is the pressure of air…
  4. The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known…
  5. In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working…
  6. In a four stage compressor, if the pressure at the first and third stage is 1 bar and 16 bar, then the…
  7. For speed above 3000 km/hour, it is more advantageous to use
  8. Rotary compressors are suitable for
  9. The thermal efficiency of a gas turbine as compared to a diesel plant is
  10. The closed cycle in gas turbines
  11. The air is delivered ________ in one revolution in case of a three lobbed rotor.
  12. The efficiency of roots blower ________ with the increase in pressure ratio.
  13. Isothermal compression though most efficient, but is not practicable because
  14. In a jet propulsion
  15. High air-fuel ratio is used in gas turbines
  16. The compression ratio in a gas turbine is of the order of
  17. In a high pressure compressor, the delivery pressure is
  18. Gas turbine as compared to internal combustion engine
  19. Pick up the wrong statement
  20. For a two stage reciprocating compressor, compression from p₁ to p₃ is with perfect intercooling…
  21. To avoid moisture troubles, the compressed air main line should
  22. Gas turbine works on
  23. Stalling of blades in axial flow compressor is the phenomenon of
  24. In a centrifugal compressor, the ratio of the ________ to the blade velocity is called slip factor.
  25. Reheating in a multistage expansion gas turbine __________ compressor work.
  26. The ratio of work done per cycle to the swept volume in case of compressor is called
  27. Inter cooling in compressors
  28. In a closed cycle gas turbine, the air is compressed
  29. A turboprop is preferred to turbojet because
  30. The overall isothermal efficiency of the compressor is defined as the ratio of