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Ram compression in turbojet involves

A. Reduction of speed of incoming air and conversion of part of it into pressure energy

B. Compression of inlet air

C. Increasing speed of incoming air

D. Lost work

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  1. If the clearance ratio for a reciprocating air compressor is 'K', then its volumetric efficiency is…
  2. The air power of the compressor is also known as
  3. A closed cycle gas turbine consists of a
  4. Reciprocating air compressor is best suited for
  5. For minimum work required to compress and deliver a quantity of air by multistage compression
  6. If the flow of air through the compressor is parallel to its axis, then the compressor is
  7. The working fluid in a turbine is
  8. Pick up the correct statement
  9. Standard air is the air at ________ and relative humidity of 36 percent.
  10. The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ =…
  11. Ratio of compression is the ratio of
  12. In a centrifugal compressor, the flow of air is ________ to the axis of compressor.
  13. The type of rotary compressor used in gas turbines, is of
  14. In a double acting compressor, the air is compressed
  15. In jet engines, paraffin is usually used as the fuel because of its
  16. As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure…
  17. In which case the air-fuel ratio is likely to be maximum?
  18. The work ratio of simple gas turbine cycle depends on
  19. The overall efficiency of the compressed air system is the
  20. The blades of gas turbine are made of
  21. Separators are generally used in air compressor installations
  22. The axial flow compressor is preferred in aircraft gas turbines because of
  23. The minimum work required for a three stage reciprocating air compressor is ________ the work required…
  24. The compression ratio for the compressor is always __________ unity.
  25. Cylinder clearance in a compressor should be
  26. Maximum temperature in a gas turbine is of the order of
  27. In open cycle turbojet engines used in military aircraft, reheating the exhaust gas from the turbine…
  28. Reheating in multistage expansion gas turbine results in
  29. Pick up the correct statement
  30. Euler's equation can be used for