ACS Airframe Systems & Structural Maintenance

Question 1

What is the primary purpose of an aircraft's hydraulic system?

Accepted Answer

Operate flight control surfaces

Answer

The hydraulic system is used to operate aircraft components like brakes, landing gear, and flight controls.

Question 2

Which tool is commonly used to measure structural alignment in aircraft?

Accepted Answer

Plumb bob

Answer

A plumb bob is traditionally used to ensure vertical and horizontal alignment.

Question 3

What is the most common material used for aircraft skin?

Accepted Answer

Aluminum alloy

Answer

Aluminum alloys are lightweight and corrosion-resistant, making them ideal for aircraft skins.

Question 4

What component prevents an aircraft's structure from buckling under compressive loads?

Accepted Answer

Stringers

Answer

Stringers are structural elements that prevent buckling by reinforcing aircraft skin.

Question 5

Which inspection method is best for detecting surface cracks on aircraft structures?

Accepted Answer

Dye penetrant inspection

Answer

Dye penetrant inspection is a popular method for identifying surface-breaking defects.

(ACS) Airman Certification Standard Certified Mechanic Practice Test