Airframe Mechanic Certification Aircraft Systems & Components 2

Question 1

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

Accepted Answer

Reduce lift and increase drag during descent

Answer

Spoilers disrupt airflow over the wing to reduce lift and increase drag, allowing steeper descents without increasing airspeed.

Question 2

Which component in a hydraulic system prevents pressure from exceeding a safe limit?

Accepted Answer

Relief valve

Answer

A relief valve opens automatically when system pressure exceeds a preset limit, routing fluid back to the reservoir.

Question 3

What type of corrosion forms as a white powdery deposit on aluminum aircraft structures?

Accepted Answer

Oxidation corrosion

Answer

Oxidation corrosion on aluminum produces aluminum oxide, which appears as a white or gray powdery surface deposit.

Question 4

In a fuel system, what is the function of a boost pump?

Accepted Answer

Maintain positive fuel pressure to the engine-driven pump

Answer

Boost pumps provide positive fuel pressure to prevent cavitation in the engine-driven pump, especially during high-altitude operations.

Question 5

What is the purpose of a Zerk fitting on an aircraft landing gear component?

Accepted Answer

Provide a grease injection point for lubrication

Answer

A Zerk (grease) fitting allows technicians to inject grease into bearings and joints using a grease gun without disassembly.

Airframe Mechanic Certification Practice Test