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Home > Training for exam quizzes ATPL, PPL(A), PPL(H), BPL Hot Air, BPL Gas, SPL - Sailplane, EASA Drone, FAA Drone > Principles of Flight (Helicopter) - PPL(H) - Private Pilot License

Quiz Principles of Flight (Helicopter) - PPL(H) - Private Pilot License

Test 10 Questions PPL(H) - Private Pilot License - Principles of Flight (Helicopter), no time limit

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1 - What is the correct way to counteract the vortex ring state? Raise collective and decrease rotor RPM Raise collective and pull back the stick Try to gain airspeed and enter autorotation Open throttle and pull back the stick

2 - The rotor blade shape takes effect on the... Lift distribution. Rotor head used. Noch sensitivity. Structural take-off mass.

3 - What relieves the helicopter in a low G manoeuvre? Weightlessness of the passengers during the push over Rolling movement of the helicopter to the right Increased vertical airflow through the rotor Centrifugal force in parabolic flight during the entire manoeuvre

4 - What is the reason for the driving forces in an autorotation? Downward tilted effective airflow Low rate of descent Increased pitch angle High airspeeds

5 - The pitch angle of a tail rotor blade is changed... Cyclically. Collectively. Symmetrically. Asymmetrically.

6 - The rotor RPM is kept constant in the helicopter by the engine RPM. It can be influenced by the... Cyclic stick. Throttle and the governor. Starter and the impulse coupling. Collective.

7 - What action is necessary in a modern helicopter during the transition to a horizontal turn? A control column movement forward or raising the collective Open the throttle in a helicopter with a rotor turning in an anti-clockwise direction seen from above Open the throttle in a helicopter with a rotor turning in a clockwise direction seen from above A control column movement backward or raising the collective

8 - What is the risk arising in a vertical autorotation with a subsequent increase in airspeed prior to the landing? High rotor RPM Vortex ring state Loss of the tail rotor efficiency Misjudgement when increasing the airspeed

9 - Why is a helicopter's climb initially accelerated after an increase of the pitch angle? The larger pitch angle causes a decrease and a compression of the airflow until the climb rate corresponds to the induced velocity through the main rotor disc The inertia of the air increases the effective angle of attack temporarily until an additional component of the climb rate reduces the effective angle of attack again The initially high airflow increases the rotor thrust until the lower air density reduces the rotor thrust again The conversion of energetic air into kinetic rotor energy decreases continuously with increasing density altitude

10 - Which statement about the required force to change the pitch angle is correct? It is the smallest by using an advance angle of 90° It is the smallest by using a delta-three-hinge It must be greater than the rotor disc loading It must be greater than the tangential force

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