Wake Turbulence

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Question 1 of 14

1. Question

Avoiding wake turbulence is

the sole responsibility of the pilot.
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the responsibility of the pilot, only when advised by ATC of the possibility of wake turbulence.
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the sole responsibility of ATC.
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a responsibility shared by both the pilot and ATC.
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Question 2 of 14

2. Question

Hazardous wake turbulence caused by aircraft in still air

may persist for 5 minutes or more.
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dissipates immediately.
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dissipates rapidly.
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persists indefinitely.
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Question 3 of 14

3. Question
Which response is most correct with respect to wake turbulence?
1. Wing tip vortices are carried by the ambient wind.
2. Wing tip vortices have a circular and downward motion.
3. Wake turbulence exists behind all aeroplanes and helicopters in flight.
A, B, C.
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B, C.
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A, C.
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C.
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Question 4 of 14

4. Question
The wing tip vortices generated by a heavy aeroplane can cause a lighter aircraft encountering them to
1. sustain structural damage.
2. continue descent even when maximum power is applied.
3. go out of control.
A, B, C.
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A, B.
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B, C.
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C.
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Question 5 of 14

5. Question

During the two minutes after the passage of a heavy aeroplane in cruising flight, hazardous wing tip vortices will

dissipate very slowly.
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dissipate completely.
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dissipate rapidly.
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remain at cruising altitude.
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Question 6 of 14

6. Question

The pilot of a light aircraft on final approach close behind a heavier aircraft should plan the approach to land

beyond the touchdown point of the other aircraft.
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prior to the touchdown point of the other aircraft.
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at the touchdown point of the other aircraft.
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to the right or left of the touchdown point of the other aircraft.
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Question 7 of 14

7. Question

Wake turbulence is produced by

all fixed and rotary wing aircraft.
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heavy aeroplanes only, regardless of speed.
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turbojet-powered aircraft only.
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fast moving aeroplanes only.
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Question 8 of 14

8. Question

Wake turbulence caused by a departing large aeroplane begins

with rotation.
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before rotation.
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after becoming airborne.
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with full power application.
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Question 9 of 14

9. Question

Wake turbulence caused by a departing aeroplane is most severe immediately

following take-off.
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before rotation.
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above its flight path.
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following full power application.
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Question 10 of 14

10. Question

Which statement concerning wing tip vortices is false?

Vortices are caused directly by “jet wash”.
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Lateral movement of vortices, even in a no wind condition, may place a vortex core over a parallel runway.
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With a light cross wind, one vortex can remain stationary over the ground for some time.
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Vortices normally settle below and behind the aircraft.
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Question 11 of 14

11. Question

Wake turbulence will be greatest when generated by an aeroplane which is

heavy, clean configuration and slow speed.
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heavy, landing configuration and slow speed.
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light, clean configuration and high speed.
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heavy, take-off configuration and slow speed.
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Question 12 of 14

12. Question

A helicopter in forward flight produces hazardous vortices

similar to wing tip vortices.
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which rise above the helicopter.
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which remains at the same level as the helicopter.
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ahead of the helicopter.
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Question 13 of 14

13. Question

Which statement concerning vortices caused by helicopters is correct?

The size and weight of the helicopter has a direct influence on the intensity of the vortices.
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Helicopter vortices are generally weak and dissipate rapidly.
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Helicopter vortices are less intense than the vortices of an aeroplane of the same weight.
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Wind does not influence the movement of vortices generated by a helicopter in hovering flight.
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Question 14 of 14

14. Question

What effect would a light cross wind have on the wing tip vortices generated by a large aeroplane that had just taken off? A light cross wind

could cause one vortex to remain over the runway for some time.
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would rapidly dissipate the strength of both vortices.
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would rapidly clear the runway of all vortices.
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would not affect the lateral movement of the vortices.
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