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In jet engines the products of combustion after passing through the gas turbine are discharged into

A. Atmosphere

B. Back to the compressor

C. Discharge nozzle

D. Vacuum

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  1. Rotary compressor is best suited for
  2. Which one of the following is the effect of blade shape on performance of a centrifugal compressor?
  3. The compressor efficiency is the
  4. In a high pressure compressor, the delivery pressure is
  5. If p₁, is the pressure of air entering the L.P. cylinder and p₂ is the pressure of air…
  6. The performance of air compressor at high altitudes will be ________ as compared to that at sea level.
  7. For a two stage compressor, if index of compression for higher stage is greater than index of compression…
  8. A turboprop is preferred to turbojet because
  9. Separators are generally used in air compressor installations
  10. The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)
  11. An ideal air compressor cycle with clearance on PV diagram can be represented by following processes
  12. The advantage of multistage compression over single stage compression is
  13. Propulsion efficiency of the following order is obtained in practice
  14. The volume of air delivered by the compressor is called
  15. If p₁ is the pressure of air entering the L.P, cylinder and p₃ is the pressure of air…
  16. The degree of reaction is usually kept ________ for all types of axial flow compressors.
  17. In a single stage, single acting reciprocating air compressor without clearance volume, the workdone…
  18. The air is delivered ________ in one revolution in case of a three lobbed rotor.
  19. In a closed cycle gas turbine, the air is compressed
  20. The output of a gas turbine is 300 KW and its efficiency is 20 percent, the heat supplied is
  21. Isothermal compression efficiency, even when running at high speed, can be approached by using
  22. In jet engines the products of combustion after passing through the gas turbine are discharged into
  23. The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is
  24. Which of the following statement is correct relating to rocket engines?
  25. The maximum delivery pressure in a rotary air compressor is
  26. The closed cycle in gas turbines
  27. The indicated work per unit mass of air delivered is
  28. The temperature of air at the beginning of the compression stroke is ________ the atmospheric temperature.
  29. Clearance volume in actual reciprocating compressors is essential
  30. Pressure ratio in gas turbines is the ratio of