Aircraft Structure Chapter 1

Choose the right function of wing slot

• Reduces stall speed

• Reduces drag

• Increases aircraft speed

• Increases stall speed

Identify an advantage of using a flaperon

• Increase angle of attack (AoA)

• Promote good handling

• Reduce aircraft weight

• Reduce stall speed

Choose the function of stall wedges

• Promote laminar flow

• Ensure wing root stall first

• Increase AoA

• Improve wing aerodynamic

Choose the function of trim tabs

• Aid the pilot to move the surface

• Enables moving the control surface at high speed

• Maintain balance flight

Choose the function of mass balance weight

• Reducing drag

• Reducing control surface flutter

• Increase Mcrit

Identify supersonic speed

• M0.8-M1

• <M0.8

• M1-M5

• M5>

Choose an altitude where temperature become constant

• 20,000 feet

• 36,000 feet

• 15,000 feet

• 80,000 feet

At subsonic speed, an air is considered as .

• Incompressible fluid

• Compressible fluid

Identify the velocity of the fluid when it passing through a converging area at supersonic speed.

• Constant

• High velocity

• Low velocity

Choose the shape of the subsonic engine inlet

• Square lip

• Triangular lip

• Sharp lip

• Thick lip