FAA AMT Airframe Practice Exam 2025 – All-in-One Study Guide to Master Aviation Maintenance Technician Certification!

An oleo shock strut is a type of suspension system used in aircrafts. It consists of a piston inside a cylinder filled with oil and compressed gas. When the aircraft lands, the piston compresses the gas and oil to absorb the shock. When the aircraft takes off, the gas expands, pushing the piston back out and extending the strut. Therefore, measuring the extension of the oleo shock strut can determine its operating position, which plays a crucial role in the proper functioning of the suspension system. The other options are incorrect because

-A: The length of the strut may vary depending on the specific aircraft model and type, so it cannot be used as a uniform measure.

-B: The oil level in the strut can change due to different factors such as temperature and usage, so it cannot be relied upon to determine the operating position.

-D: The air pressure in the strut can also fluctuate due to various factors, making it an unreliable measure for determining the operating position.