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Principle of Flight - PPL(A) English - Private Pilot License (Aircraft)

Test 10 domande Principle of Flight, tempo libero

1 - If surrounded by airflow (v>0), any arbitrarily shaped body produces... Lift without drag. Drag and lift. Constant drag at any speed. Drag

2 - What is the principle of a Fowler flap? A profile-like flap is extended from the trailing edge of the wing A flap from the rear bottom side of the wing is folded down At high angles of attack a part of the leading edge lifts At high angles of attack a part of the leading edge lifts

3 - The laminar boundary layer on the aerofoil is located between... The transition point and the separation point. The stagnation point and the transition point. The transition point and the center of pressure The stagnation point and the center of pressure

4 - The critical angle of attack... Changes with increasing weight. Decreases with forward center of gravity position Is independent of the weight. Increases with backward center of gravity position.

5 - Which option states a benefit of wing washout? Structurally the wing is made more rigid against rotation With the washout the form drag reduces at high speeds Greater hardness because the wing can withstand more torsion forces At high angles of attack the effectiveness of the aileron is retained as long as possible

6 - The pressure compensation between wind upper and lower surface results in ... Laminar airflow by wing tip vortices. Profile drag by wing tip vortices. Induced drag by wing tip vortices. Lift by wing tip vortices

7 - When extending the flaps for landing at constant angle of attack, in which way does the lift coefficient change far before reaching the maximum lift coefficient? It decreases It is not possible to define It increases It remains constant

8 - Through which factor listed below does the load factor increase during cruise flight? A forward centre of gravity Higher aeroplane weight An upward gust Lower air density

9 - Which statement about the airflow around an aerofoil is correct if the angle of attack increases? The stagnation point moves down The center of pressure moves down The center of pressure moves up The stagnation point moves up

10 - Raise the nose to decrease airspeed During recovery the ailerons should be kept neutral Only very old aeroplanes have a risk of spinning During recovery the ailerons should be crossed During the spin the speed constantly increases

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