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

Quiz Principles of Flight (Aeroplane) - Quiz SPL - Sailplane Pilot License

Test 10 Questions Quiz SPL - Sailplane Pilot License - Principles of Flight (Aeroplane), no time limit

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1 - "Longitudinal stability" is referred to as stability around which axis? Lateral axis Propeller axis Longitudinal axis Vertical axis

2 - Which statement about the airflow around an aerofoil is correct if the angle of attack decreases? The center of pressure moves aft The center of pressure moves forward The stagnation point moves down The stagnation point remains constant

3 - What is the advantage of differential aileron movement? The drag of the downwards deflected aileron is lowered and the adverse yaw is smaller The total lift remains constant during aileron deflection The ratio of the drag coefficient to lift coefficient is increased The adverse yaw is higher

4 - Point number 1 in the figure indicates which flight state? See figure (PFA-008) Siehe Anlage 5

question PFA-008.jpg

Inverted flight Slow flight Stall Best gliding angle

5 - Pressure compensation on an wing occurs at the... Wing tips. Leading edge. Trailing edge. Wing roots

6 - Which statement concerning the angle of attack is correct? Increasing the angle of attack results in decreasing lift The angle of attack cannot be negative A too large angle of attack may result in a loss of lift The angle of attack is constant throughout the flight

7 - In a co-ordinated turn, how is the relation between the load factor (n) and the stall speed (Vs)? N is smaller than 1, Vs is greater than in straight and level flight. N is greater than 1, Vs is smaller than in straight and level flight. N is greater than 1, Vs is greater than in straight and level flight. N is smaller than 1, Vs is smaller than in straight and level flight.

8 - What leads to a decreased stall speed Vs (IAS)? Lower density Decreasing weight Lower altitude Higher load factor

9 - What structural item provides directional stability to an airplane? Differential aileron deflection Wing dihedral Large elevator Large vertical tail

10 - What effect is referred to as "adverse yaw"? Aileron operation results in a yaw to the desired side due to less drag at the down-deflected aileron Rudder operation results in a rolling moment to the opposite side due to more lift generated by the faster moving wing. Aileron operation results in a yaw to the opposite side due to more drag at the up-deflected aileron Aileron operation results in a yaw to the opposite side due to more drag at the down-deflected aileron

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