A rocket engine uses ________ for the combustion of its fuel.

A. Surrounding air

B. Compressed atmospheric air

C. Its own oxygen

D. None of these

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  1. To avoid moisture troubles, the branch connections from compressed air lines should be taken from
  2. The compressor capacity with decrease in suction temperature
  3. For a two stage reciprocating compressor, compression from p₁ to p₃ is with perfect intercooling…
  4. The efficiency of a jet engine is higher at
  5. In air breathing jet engine, the jet is formed by expanding
  6. Isothermal compression efficiency, even when running at high speed, can be approached by using
  7. The volume of air delivered in a medium capacity air compressor per unit time is
  8. Gas turbines for power generation are normally used
  9. In a jet engine, the air-fuel ratio is
  10. Standard air is the air at
  11. Volumetric efficiency of air compressors is of the order of
  12. The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)
  13. Out of the following, from where you will prefer to take intake for air compressor
  14. In the aircraft propellers
  15. In a single stage, single acting reciprocating air compressor without clearance volume, the workdone…
  16. In which case the air-fuel ratio is likely to be maximum?
  17. The fuel consumption in gas turbines is accounted for by
  18. Pressure ratio in gas turbines is the ratio of
  19. It is not possible to use closed gas turbine cycle in aeronautical engines because
  20. The efficiency and work ratio of a gas turbine plant can be increased by
  21. The material commonly used for air craft gas turbine is
  22. To avoid moisture troubles, the compressed air main line should
  23. Gas turbine as compared to steam turbine
  24. When air is to be compressed at a high pressure, then it is advantageous to use
  25. Propulsion efficiency of the following order is obtained in practice
  26. In jet propulsion power unit, the inlet duct of diverging shape is used in order to
  27. During peak load periods, the best method of controlling compressors is
  28. Ramjet engine
  29. The compressor efficiency is the
  30. Pick up the wrong statement about advantages of multistage compression