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Which of the following statements regarding reverse thrust is true?
  • A
    The braking effect of reverse thrust is greatest at low speeds
  • B
    Reverse thrust may be used for landing but not for an aborted take-off
  • C
    At low speeds re-ingestion of the jet efflux may occur, causing overheat
  • D
    Reverse thrust may not be used on a slippery runway

Once the aircraft's speed has been reduced, if the reverse thrust is not shut down engine may suck debris from engine intakes where it can be ingested and cause overheat.

It must be close by pilots (in a safe and normal operation) until 70 kts.
Jet Efflux Hazard is defined as hazards associated with the blast force generated behind a jet engine. The hazard exists whenever a jet engine is running but is increased and extends over a greater area and at greater distance behind the engine, at high engine power settings when taxiing, before and during take-off, and during engine maintenance activity.

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