Domande esame PPL-EN per Principle of Flight

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Test 10 domande Principle of Flight, tempo libero

1 - Stability around which axis is mainly influenced by the center of gravity's longitudinal position? Vertical axis Longitudinal axis Gravity axis Lateral axis

2 - Stabilization around the lateral axis during cruise is achieved by the... Horizontal stabilizer. Airlerons Wing flaps. Vertical rudder.

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

4 - What effects typically result from propeller icing? Reduced power output, decreasing RPM Increased power output, decreasing RPM. Increased power output, increasing RPM. Reduced power output, increasing RPM.

5 - Bernoulli's equation for frictionless, incompressible gases states that... Static pressure = total pressure + dynamic pressure Total pressure = dynamic pressure - static pressure Dynamic pressure = total pressure + static pressure. Total pressure = dynamic pressure + static pressure.

6 - Which constructive feature has the purpose to reduce stearing forces? T-tail Vortex generators Differential aileron deflection Aerodynamic rudder balance

7 - During a straight and steady climb, which force acts addionally, and in the same direction as the drag force, resulting in more power required for climb than for horizontal flight? A component of the weight force along the rearward flight path The vertical component of the weight force A component of the thrust along the rearward flightpath. A component of the lift force along the forward flightpath.

8 - Number 3 in the drawing corresponds to the... See figure (PFA-010) (1,00 P.) Siehe Anlage 1

Chord Thickness Camber line Chord line.

9 - Which point on the aerofoil is represented by number 3? See figure (PFA-009) (1,00 P.) Siehe Anlage 2

Separation point Center of pressure Stagnation point Transition point

10 - The drag coefficient... Increases with increasing airspeed. Is proportional to the lift coefficient. Cannot be lower than a non-negative, minimal value. May range from zero to an infinite positive value

Cambia Materia