ASE102 QUIZ3

Mean camber line is a straight line that is drawn from leading and trailing edge of an airfoil.

• True

• False

At positive angle of attack, bottom surface of an airfoil has lower pressure than topper surface pressure.

• True

• False

At positive angle of attack, air particles travels faster on top surface with respect to bottom surface.

• True

• False

Asymmetric airfoil has zero lift coefficient at zero angle of attack.

• True

• False

For fixed wing aircraft, forward speed is necessary for take off.

• True

• False

Shock wave grows larger as the speed decreases.

• True

• False

Thinner airfoils have smaller critical Mach number.

• True

• False

Straight wings have smaller critical Mach number with respect to swept wings.

• True

• False

If the aspect ratio of a wing is 3, it is called high aspect ratio wing.

• True

• False

Delta wing is a low aspect ratio wing.

• True

• False