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Specific thrust is related to the nozzle by

  • A.The exit temperature alone
  • B.The nozzle length
  • C.The exit velocity
  • D.The nozzle material

Answer: C

Thrust per unit mass flow is essentially the velocity increment the engine imparts. A turbojet produces a fast jet and high specific thrust, while a high bypass turbofan produces a slower jet and correspondingly low specific thrust.

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