Aircraft Control | PPL(A) Principles of Flight - EASA & UK CAA
Aircraft Control practice questions for the EASA and UK CAA PPL(A) written exams.
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General
Section titled "General"What is the motion about the longitudinal axis called?
What is the motion about the vertical axis called?
What is the motion about the lateral axis called?
Where are the three axes of the aeroplane located in?
The pitch angle is the sum of which two angles?
What is the longitudinal axis?
Means to reduce control forces
Section titled "Means to reduce control forces"An anti-balance tab may be required for __(1)__ to __(2)__ stick force required to deflect under certain conditions.
What is the fundamental difference between a Flettner tab/servo tab and a balance tab?
Why may stick force reduction be necessary?
How can stick force reduction be achieved?
What is the working principal of a balance tab?
Pitch control
Section titled "Pitch control"Leaving the ground effect, what happends to the downwash of the wing?
By deflecting the elevator upwards, what happens?
How can the angle of attack be changed?
While maintaining straight and level flight, what will happen if the elevator is progressively deflected downwards?
Forward CG position also means:
While maintaining straight and level flight, what will happen if the elevator is progressively deflected upwards?
What does an aft CG position mean in stick forces and maneuverability?
The lift of the horizontal stabiliser is affected by: __(1)__ the propwash (slipstream) and, __(2)__ the downwash of the wing.
Roll control
Section titled "Roll control"How is the control stick moved to bank counter-clockwise (as seen from the cockpit)?
In the case of a crosswind take-off or landing, when is "aileron into the wind" used?
How will the control stick be moved to bank clockwise seen from the cockpit?
What are ailerons are used for?
Roll-yaw interaction
Section titled "Roll-yaw interaction"What in-built device can be used to reduce the effect of adverse yaw?
Unless fitted with certain devices, adverse aileron yaw can be counteracted by:
How do differential ailerons work?
When starting a level left turn, the aeroplane is prone to yaw to the __(1)__ due to the so-called __(2)__.
What is the working principle of Frise ailerons?
Adverse aileron yaw is caused by the fact that when the turn is started, the down going wing creates __(1)__ drag compared to the upward going one, so a yaw __(2)__ as/to the direction of the turn is experienced.
Trimming
Section titled "Trimming"Why is trimming necessary?
Which trim is usually the most important (used most often)?
If we need to apply a pulling force on the yoke, how shall we then trim it to relieve the stick force?
Which of the following options is correct concerning a trim tab?
Which option is correct concerning a trim tab?
Yaw control
Section titled "Yaw control"When deflecting the rudder left, (as seen from the cockpit) where does the nose of the aeroplane move?
What does applying the rudder pedal only, and without any aileron input result in?
How can one achieve a counter-clockwise yaw, as seen from the top of the aircraft?
How can one achieve a clockwise yaw seen from the top of the aircraft?