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Free PSTAR practice Wake Turbulence

Which statement concerning vortices caused by helicopters is correct?

  1. AHelicopter vortices are generally weak and dissipate rapidly.
  2. BThe size and weight of the helicopter has a direct influence on the intensity of the vortices.Correct answer
  3. CHelicopter vortices are less intense than the vortices of an aeroplane of the same weight.
  4. DWind does not influence the movement of vortices generated by a helicopter in hovering flight.

Why this is the answer

Per TC AIM-AIR (Wake Turbulence), as with aeroplanes the helicopter's size and weight directly drive vortex intensity — the heavier the helicopter, the more intense the wake. The distractors wrongly dismiss helicopter vortices as weak or wind-independent.

Reference

TC AIM-AIR – Wake Turbulence

Question reproduced verbatim from Transport Canada’s PSTAR Study and Reference Guide (TP 11919E). The answer key is Transport Canada’s; the explanation is ours.

A study aid — not a substitute for the official guide, the CARs, or your instructor.

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