LEVEL 4 AIR CADET AVIATION EXAM 2025 QUESTIONS AND ANSWERS

LEVEL 4 AIR CADET AVIATION
EXAM 2025 QUESTIONS AND
ANSWERS


25 - ....ANSWER ...-The thickest part of the conventional airfoil

occurs at __% of the chord.

50 - ....ANSWER ...-The thickest part of a laminar flow airfoil

occurs at __% of the chord.

Boundary Layer - ....ANSWER ...-The very thin layer of air lying

over the surface of the wing.

Laminar Layer - ....ANSWER ...-The area at the front of the wing

where air flows smoothly over the surface.

Turbulent Layer - ....ANSWER ...-The area further along the wing

where air slows down due to friction and becomes turbulent.




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, Transition Point - ....ANSWER ...-The point where laminar flow

changes to turbulent flow.

Aspect Ratio - ....ANSWER ...-The relationship between the

length of the wing and its width, calculated by dividing the wingspan by

the average chord (Leading edge to trailing edge).

Angle of Incidence - ....ANSWER ...-The angle at which the wing

is permanently inclined to the longitudinal axis of the wing.

Wash-Out - ....ANSWER ...-Decrease of the angle of incidence at

the wingtip. (ex. Installing wingtip fuel tanks, using winglets, drooping

the wingtips, etc.)

Wash-In - ....ANSWER ...-Increase of the angle of incidence at

the wingtip. (ex. Installing wingtip fuel tanks, using winglets, drooping

the wingtips, etc.)

Slats - ....ANSWER ...-Auxiliary airfoils that automatically move

out in front of the leading edge of the wing at high angles of attack, to

improve low speed stability/handling.




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