Automotive Service Excellence (ASE) Brakes Certification Practice Exam

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How can brake rotor warping occur?

From uneven tire pressure

Excessive heat from prolonged braking or manufacturing defects

Brake rotor warping can occur primarily due to excessive heat generated during braking or manufacturing defects. When brakes are applied, the friction created between the brake pads and the rotor generates significant heat. If this heat is excessive or sustained over time—such as during aggressive braking, frequent downhill driving, or in situations where the brakes are continuously engaged—it can lead to thermal expansion. This expansion can cause the rotor to lose its flatness, resulting in warping.

Additionally, manufacturing defects can also play a role. If a rotor is not produced with precise tolerances or if there are inconsistencies in the rotor's material composition, it might be more susceptible to warping when subjected to heat from braking. Therefore, understanding the factors that contribute to brake rotor warping is critical for maintaining proper brake function and ensuring safety on the road.

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Improper installation of the rotor

Using low-quality brake pads

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