AFAST Practice Exam 2025 – Complete Test Prep Resource

Question: 1 / 400

What principle is described by the term ‘centrifugal force’ relative to rotor blades?

A force pushing blades downward

A reaction to lift generated

A stabilizing force against airflow

A force that bends blades outward

The term ‘centrifugal force’ refers to the apparent force that acts outward on a body moving in a circular path, arising from the body's inertia. In the context of rotor blades, as these blades rotate, they experience this outward force due to their mass and the circular motion they follow.

This outward pull impacts the structural integrity of the blades, often resulting in bending or flexing outward as they spin. The design of the blades must account for this bending to ensure they maintain their structural integrity and perform effectively under operational conditions. Thus, the correct choice highlights the effect of centrifugal force as it relates to the movement and design of rotor blades in a rotor system.

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