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

Lift

Answer

Thrust

Answer

Weight

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

Dihedral angle

Answer

Angle of incidence

Answer

Sweep angle

Question 3

At what angle of attack does a wing typically stall?

Accepted Answer

18–22 degrees

Answer

5–8 degrees

Answer

10–15 degrees

Answer

25–30 degrees

Question 4

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

Accepted Answer

Pressure decreases

Answer

Pressure increases

Answer

Pressure stays the same

Answer

Pressure oscillates

Question 5

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

Accepted Answer

Induced drag

Answer

Parasite drag

Answer

Skin friction drag

Answer

Form drag

Question 6

Which wing design feature reduces induced drag by limiting wingtip vortices?

Accepted Answer

Winglets

Answer

Flaps

Answer

Slats

Answer

Ailerons