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If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches

A. Isothermal

B. Isentropic

C. Adiabatic

D. Isochoric

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  1. In a centrifugal compressor, the ratio of the ________ to the blade velocity is called slip factor.
  2. An aftercooler is used to
  3. In multistage compressor, the isothermal compression is achieved by
  4. Aeroplanes employ following type of compressor
  5. A 3 m³/min compressor means that it
  6. Maximum work is done in compressing air when the compression is
  7. Adiabatic compression is one in which
  8. The indicated work per unit mass of air delivered is
  9. In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs…
  10. Only rocket engines can be propelled to space because
  11. The compression ratio for the compressor is always __________ unity.
  12. In a single stage, single acting reciprocating air compressor, without clearance, the workdone on the…
  13. Pick up the wrong statement
  14. The degree of reaction is usually kept ________ for all types of axial flow compressors.
  15. A large clearance volume in a reciprocating compressor results in
  16. The air-fuel ratio in gas turbines is of the order of
  17. The type of rotary compressor used in gas turbines, is of
  18. Pick up the wrong statement
  19. Isothermal compression efficiency, even when running at high speed, can be approached by using
  20. For supplying intermittent small quantity of air at high pressure, following compressor is best suited
  21. An ideal air compressor cycle with clearance on PV diagram can be represented by following processes
  22. The efficiency of jet engine is
  23. Pick up the false statement
  24. If the flow of air through the compressor is parallel to its axis, then the compressor is
  25. A rocket works with maximum overall efficiency when air craft velocity is equal to the
  26. The criterion of the thermodynamic efficiency for rotary compressor is
  27. The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is…
  28. In air compressors, free air delivery means the
  29. The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ =…
  30. In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of