Which of the following statement is wrong?

A. In a two stage reciprocating air compressor with complete intercooling, maximum work is saved.

B. The minimum work required for a two stage reciprocating air compressor is double the work required for each stage.

C. The ratio of the volume of free air delivery per stroke to the swept volume of the piston is called volumetric efficiency.

D. None of the above

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. The volumetric efficiency for reciprocating air compressors is about
  2. When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades…
  3. The overall efficiency of the compressed air system is the
  4. Water gas is produced by
  5. The blades of gas turbine are made of
  6. Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is
  7. If the flow of air through the compressor is perpendicular to its axis, then it is a
  8. In axial flow compressor, exit flow angle deviation from the blade angle is a function of
  9. The degree of reaction is usually kept ________ for all types of axial flow compressors.
  10. If the flow of air through the compressor is parallel to its axis, then the compressor is
  11. In jet propulsion power unit, the inlet duct of diverging shape is used in order to
  12. For a two stage compressor, if index of compression for higher stage is greater than index of compression…
  13. The workdone on a compressor will be minimum if air is taken from
  14. The compression ratio in a gas turbine is of the order of
  15. The pressure ratio in gas turbines is of the order of
  16. If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches
  17. In jet engines the products of combustion after passing through the gas turbine are discharged into
  18. Ram compression in turbojet involves
  19. Only rocket engines can be propelled to space because
  20. A rocket engine for the combustion of its fuel
  21. In a centrifugal compressor, the ratio of the ________ to the blade velocity is called slip factor.
  22. The following property is most important for material used for gas turbine blade
  23. The compressor performance at higher altitude compared to sea level will be
  24. The material commonly used for air craft gas turbine is
  25. The pressure ratio of an ideal vaned compressor with increase in mass flow rate
  26. In a four stage compressor, if the pressure at the first and third stage is 1 bar and 16 bar, then the…
  27. The working fluid in a turbine is
  28. Compression efficiency is compared against
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  30. The degree of reaction of an axial flow turbine is the ratio of isentropic temperature drop in a blade…