During peak load periods, the best method of controlling compressors is

A. Start-stop motor

B. Constant speed unloader

C. Relief valve

D. Variable speed

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  1. Pick up the correct statement
  2. When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades…
  3. The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of
  4. If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches
  5. The closed cycle in gas turbines
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  7. A rocket engine uses ________ for the combustion of its fuel.
  8. The material commonly used for air craft gas turbine is
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  14. Losses in a centrifugal compressor are due to
  15. Which of the following statement is correct as regard to centrifugal compressors?
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  17. In n₁ and n₂ are the indices of compression for the first and second stage of compression,…
  18. Pick up wrong statement. Surging phenomenon in centrifugal compressor depends on
  19. Air-fuel ratio in a jet engine will be of the order of
  20. The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation
  21. Producer gas is produced by
  22. Phenomenon of choking in compressor means
  23. A compressor at high altitude will draw
  24. The volumetric efficiency of compressor with increase in compression ratio will
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  26. If p₁ is the pressure of air entering the L.P, cylinder and p₃ is the pressure of air…
  27. Rotary compressors are suitable for
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  29. Choose the correct statement
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