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Ram compression refers to

  • A.The pressure at the nozzle exit
  • B.Pressure rise obtained from decelerating the flow by forward speed
  • C.Compression performed by the first compressor stage
  • D.Pressure loss through the intake duct

Answer: B

The faster the aircraft flies the more compression the intake performs before the engine does any work at all. At high supersonic speeds this contribution dominates, which is precisely why a ramjet can dispense with a compressor altogether.

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