AMT Airframe Systems & Components 3

Question 1

In a pressurized aircraft fuselage, the structure must be designed to withstand which primary stress?

Accepted Answer

Tensile hoop stress

Answer

Internal pressurization creates tensile hoop stress that attempts to expand the fuselage diameter, requiring the skin to resist being pulled apart.

Question 2

What is the purpose of a bleed air system on a turbine-powered aircraft?

Accepted Answer

To supply hot compressed air from the engine for cabin pressurization and anti-ice

Answer

Bleed air is extracted from engine compressor stages and used for cabin pressurization, air conditioning, anti-icing, and pneumatic systems.

Question 3

Which rivet is most appropriate for use in areas that are accessible from one side only?

Accepted Answer

Cherry (blind) rivet

Answer

Blind rivets, such as Cherry rivets, are designed to be installed from one side when the back side is inaccessible.

Question 4

A semi-monocoque fuselage structure derives most of its strength from:

Accepted Answer

A combination of skin, stringers, frames, and bulkheads working together

Answer

Semi-monocoque construction shares loads between the stressed skin and the internal framework of stringers, frames, and bulkheads.

Question 5

What does a negative dihedral (anhedral) wing configuration primarily provide?

Accepted Answer

Decreased lateral stability for improved maneuverability

Answer

Anhedral reduces the natural lateral stability (dihedral effect), which is desirable in highly maneuverable or swept-wing high-speed aircraft.

(AMT) Aviation Maintenance Technician Practice Test