Aerodynamics Quiz

During flight the four forces acting on the airplane are :

• Lift, Drag, Weight and Normal

• Lift, Drag, Centrifugal and Normal

• Centrifugal, Drag, Weight and Thrust

• Lift, Drag, Weight and Thrust

According ISA, the temperature will decrease if :

• Static pressure increase.

• Density increase.

• Altitude increase.

• Altitude decrease.

The angle of Attack is :

• The angle between the chord line of the airfoil and direction of the relative wind

• The angle between the chord line of the airfoil and direction of the flight path

• The angle between the chord line of the airfoil and direction of the longitudinal axis

• The angle between the camber of the airfoil and direction of the relative wind

According ISA the density will decrease if :

• Decreasing altitude.

• Increasing pressure.

• Increasing altitude.

• Increasing Temperature.

It's caused by the separation of airflow from the wing's upper surface. This results in a rapid decrease in lift, what definition for this statement:

• Induced Drag

• Stall

• Lift

• Parasite Drag

The angle of incidence is :

• The angle between the chord line of the airfoil and direction of the relative wind

• The angle between the chord line of the airfoil and direction of the flight path

• The angle between the chord line of the airfoil and direction of the longitudinal axis

• The angle between the camber of the airfoil and direction of the relative wind

The amount of lift generated by an airplane is controlled by pilot, as:

• Change angle of attack, airspeed, change of the shape of the wing by lowering the flaps

• Change angle of attack, airspeed

• Change angle of attack, airspeed, total drag, parasite drag, induce drag

• Change angle of attack, change of the shape of the wing by lowering the flaps

Parasite drag is:

• Is caused by any aircraft surface

• Is caused by roughness of the airplane's surfaces

• Is caused by wake turbulence

• Is caused by creating lift

   Stall recovery technique, are:

•    Increase  angle of attack to increase lift,  apply maximum allowable power, adjust the power as required

•   Decrease angle of attack, smoothly apply maximum allowable power, adjust the power as required

• Decrease angle of attack, retard power to idle, then fly to lower altitude

• No one answer correct

Longitudinal stability of an airplane:

• Stability about an airplane's longitudinal axis

• Stability about an airplane's lateral axis

• Stability about an airplane's vertical axis

• Stability about an airplane's horizontal axis