PSTAR Online Course

Part 7: Wake Turbulence

7.11 Which statement concerning wing tip vortices is false?

(1) Vortices normally settle below and behind the aircraft.
(2) With a light cross-wind, one vortex can remain stationary over the ground for some time.
(3) Lateral movement of vortices, even in a no wind condition, may place a vortex core over a parallel runway.
(4) Vortices are caused directly by "jet wash".