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Component matching requires that

  • A.The engine runs at constant speed
  • B.Flow, work and speed all compatible
  • C.Every component runs at its own peak efficiency
  • D.The compressor and turbine have equal pressure ratios

Answer: B

Continuity fixes the flow, the work balance ties turbine output to compressor demand, and a common shaft ties their speeds. Those three conditions together determine where the engine actually runs, regardless of where each component would prefer to be.

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