SPC Student Pilot Basic Aerodynamics 3

Question 1

Which flight condition produces the greatest amount of induced drag?

Accepted Answer

Low speed, high angle of attack

Answer

Induced drag is greatest at high angles of attack (low speeds) because strong wingtip vortices form when generating large amounts of lift.

Question 2

Bernoulli's principle states that as the velocity of a fluid increases, its static pressure:

Accepted Answer

Decreases

Answer

Bernoulli's principle states that within a streamline flow, an increase in fluid velocity results in a decrease in static pressure.

Question 3

Wingtip vortices are most hazardous when following a large aircraft that is:

Accepted Answer

Slow and in a landing configuration

Answer

Wingtip vortices are most intense when a heavy aircraft is slow and producing maximum lift, such as during approach and landing.

Question 4

Aspect ratio of a wing is defined as the ratio of:

Accepted Answer

Wingspan to chord length

Answer

Aspect ratio is the ratio of the wingspan (or span squared) to the mean chord, indicating how long and narrow the wing is.

Question 5

What is the effect of increasing wing camber?

Accepted Answer

It increases the coefficient of lift at any given angle of attack

Answer

Greater camber increases the curvature of the wing, which accelerates airflow over the upper surface and increases the lift coefficient.

(SPC) Student Pilot Certificate Practice Test