Isothermal compression though most efficient, but is not practicable because

A. It requires very big cylinder

B. It does not increase pressure much

C. It is impossible in practice

D. Compressor has to run at very slow speed to achieve it

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  1. Pick up the correct statement
  2. The power available for takeoff and climb in case of turbojet engine as compared to reciprocating engine…
  3. In a jet propulsion
  4. A 3 m³/min compressor means that it
  5. A gas turbine used in air craft should have
  6. The maximum temperature in a gas turbine is
  7. Euler's equation is applicable for
  8. In a centrifugal compressor, the ratio of the ________ to the blade velocity is called slip factor.
  9. The type of rotary compressor used in aeroplanes, is of
  10. The fuel consumption in gas turbines is accounted for by
  11. The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation
  12. Maximum temperature in a gas turbine is of the order of
  13. Rotary compressors are suitable for
  14. 1 m of air at atmospheric condition weighs approximately
  15. The capacity of compressor will be highest when its intake temperature is
  16. High air-fuel ratio is used in gas turbines
  17. The type of rotary compressor used in gas turbines, is of
  18. The pressure ratio of an ideal vaned compressor with increase in mass flow rate
  19. A compressor at high altitude will draw
  20. Which one of the following is the effect of blade shape on performance of a centrifugal compressor?
  21. Volumetric efficiency is
  22. The air-fuel ratio in gas turbines is of the order of
  23. The degree of reaction is usually kept ________ for all types of axial flow compressors.
  24. In a closed cycle gas turbine, the air is compressed
  25. Maximum work is done in compressing air when the compression is
  26. Pick up the correct statement
  27. The volumetric efficiency for reciprocating air compressors is about
  28. The propulsive power of the rocket is (where v₁ = Jet velocity, and v₂ = Aircraft velocity)
  29. In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of
  30. The pressure and temperature conditions of air at the suction of compressor are