SPC Student Pilot Basic Aerodynamics 2

Question 1

Which aerodynamic force acts perpendicular to the relative wind?

Accepted Answer

Lift

Answer

Lift always acts perpendicular to the relative wind, regardless of the aircraft's attitude.

Question 2

What happens to induced drag as airspeed increases?

Accepted Answer

It decreases

Answer

Induced drag decreases as airspeed increases because less angle of attack is needed to generate the required lift.

Question 3

The chord line of a wing is defined as:

Accepted Answer

An imaginary line from the leading edge to the trailing edge

Answer

The chord line is a straight imaginary line connecting the leading edge to the trailing edge of an airfoil.

Question 4

What term describes the angle between the chord line and the relative wind?

Accepted Answer

Angle of attack

Answer

Angle of attack is the angle between the chord line of the wing and the direction of the relative wind.

Question 5

During a coordinated level turn, total lift must be greater than weight because:

Accepted Answer

Only the vertical component of lift supports the aircraft's weight

Answer

In a bank, lift is divided into vertical and horizontal components, so the vertical component must equal weight, requiring total lift to increase.

(SPC) Student Pilot Certificate Practice Test