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A turbine achieves far more work per stage than a compressor because

  • A.It rotates faster
  • B.Its flow accelerates
  • C.Its blades are stronger
  • D.Its gas is hotter

Answer: B

An accelerating flow keeps its boundary layer attached through turning that would separate a diffusing one immediately. That single difference is why a handful of turbine stages can drive a compressor of a dozen or more.

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