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Air leaving the compressor cannot be burned directly because it is

  • A.Contaminated with oil
  • B.Moving far too fast for a flame to remain stable
  • C.Too cold to ignite the fuel
  • D.Too rich to burn

Answer: B

Compressor delivery velocities of well over a hundred metres per second would blow any flame downstream immediately. The diffuser and snout slow the air first, and swirl and recirculation then anchor the flame in a region of much lower velocity.

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