Question

Select the true statement from the following with regards to stall speed:

a) indicated stall speed changes as altitude is gained
b) the angle of attack at which a given airfoil stalls varies under different conditions
c) an increase in weight results in a decrease in stall speed
d) indicated stall speed remain in the same regardless of altitude

Answer 1

Option B). The correct statement regarding stall speed is that the angle of attack at which a given airfoil stalls varies under different conditions.

Step-by-step explanation:

The correct statement regarding stall speed is option b) the angle of attack at which a given airfoil stalls varies under different conditions.

The stall speed of an aircraft is determined by its angle of attack. The angle of attack refers to the angle between the wing's chord line and the direction of the oncoming air.

As the angle of attack increases, the lift generated by the wing decreases until it eventually stalls. The specific angle of attack at which a wing stalls can vary depending on factors such as airfoil design, weight distribution, and air density.