AQT AQT Aerodynamics & Flight Principles 1

Question 1

Which of the four forces of flight acts opposite to the direction of motion?

Accepted Answer

Drag

Answer

Drag is the aerodynamic force that opposes an aircraft's forward motion through the air.

Question 2

What is the term for the angle between the chord line of a wing and the relative wind?

Accepted Answer

Angle of attack

Answer

The angle of attack is the angle between the wing's chord line and the relative wind, directly affecting lift production.

Question 3

At what angle of attack does a wing typically stall?

Accepted Answer

18–22 degrees

Answer

Most wings stall at approximately 18–22 degrees angle of attack when airflow over the upper surface separates.

Question 4

According to Bernoulli's principle, what happens to air pressure as velocity increases?

Accepted Answer

Pressure decreases

Answer

Bernoulli's principle states that as the velocity of a fluid increases, its pressure decreases, which helps generate lift over a wing.

Question 5

What type of drag is caused by the production of lift?

Accepted Answer

Induced drag

Answer

Induced drag is a byproduct of lift generation, caused by wingtip vortices that redirect airflow and produce rearward force.

AQT - Aviation Qualification Test Practice Test