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.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, 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.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
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.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, 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.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
