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It is not possible to use closed gas turbine cycle in aeronautical engines because

A. It is inefficient

B. It is bulky

C. It requires cooling water for its operation

D. None of the above

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  1. If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of…
  2. The propulsive power of the rocket is (where v₁ = Jet velocity, and v₂ = Aircraft velocity)
  3. Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is
  4. The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of
  5. In a centrifugal compressor, the ratio of the ________ to the blade velocity is called slip factor.
  6. The volume of air delivered in a medium capacity air compressor per unit time is
  7. Isothermal compression though most efficient, but is not practicable because
  8. The stagnation pressure rise in a centrifugal compressor takes place
  9. For minimum work required to compress and deliver a quantity of air by multistage compression
  10. For perfect intercooling in a three stage compressor
  11. The type of rotary compressor used in aeroplanes, is of
  12. In a single acting reciprocating compressor, the suction, compression and delivery of air takes place…
  13. Separators are generally used in air compressor installations
  14. Inter-cooling in multistage compressors is done
  15. The compressed air may be used
  16. Euler's equation is applicable for
  17. The following property is most important for material used for gas turbine blade
  18. Fighter bombers use following type of engine
  19. The air power of the compressor is also known as
  20. A gas turbine used in air craft should have
  21. Pick up the wrong statement
  22. A machine used to raise the pressure of air is called
  23. Diffuser in a compressor is used to
  24. Work ratio of a gas turbine plant is ratio of
  25. The pressure ratio of an ideal vaned compressor with increase in mass flow rate
  26. The compressor efficiency is the
  27. The most efficient method of compressing air is to compress it
  28. The compression ratio for the compressor is always __________ unity.
  29. In a centrifugal compressor, the flow of air is ________ to the axis of compressor.
  30. During base load operation, the best method of controlling compressor is