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Inlet buzz is

  • A.A fuel system instability
  • B.Oscillation of the shock system
  • C.A vibration of the compressor blades
  • D.Noise from the exhaust nozzle

Answer: B

The shock moves rapidly in and out of the duct, producing violent pressure fluctuations that can damage structure and upset the engine. It typically appears when the intake is operating well below its matched mass flow, which is a throttled condition at speed.

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