AMT Aircraft Landing Gear Systems 2

Question 1

A landing gear unsafe (red) position indicator light typically means:

Accepted Answer

Gear is in transit or not confirmed in a safe position

Answer

A red unsafe light indicates the landing gear is in an intermediate, transitional, or unlocked position — not confirmed fully up and locked or fully down and locked.

Question 2

A squat switch (weight-on-wheels switch) is used primarily to:

Accepted Answer

Prevent landing gear retraction while the aircraft is on the ground

Answer

The squat switch senses weight on the landing gear and provides a safety interlock that prevents the gear from being retracted while the aircraft is on the ground.

Question 3

A power-boost brake system uses hydraulic power to:

Accepted Answer

Amplify pilot pedal input forces for more effective braking with less effort

Answer

Power-boost brakes use hydraulic pressure to multiply the force the pilot applies through the brake pedals, enabling effective braking of heavy aircraft without excessive pilot effort.

Question 4

Aircraft tires are typically inflated with nitrogen rather than compressed air primarily because:

Accepted Answer

Nitrogen is dry and inert, resisting moisture accumulation and temperature-driven pressure changes

Answer

Nitrogen is dry (preventing moisture condensation and corrosion inside the wheel) and chemically inert, making tire pressure more stable across extreme temperature changes compared to compressed air.

Question 5

What is the function of a brake debooster valve?

Accepted Answer

Reduce high system hydraulic pressure to the lower pressure required by the brake assemblies

Answer

A debooster (pressure-reducing) valve steps down the aircraft's high hydraulic system pressure to the lower pressure required by brake assemblies, preventing brake component damage and overheating.

(AMT) Aviation Maintenance Technician Practice Test

(AMT) Aviation Maintenance Technician Practice Test

AMT Aircraft Landing Gear Systems 2