Question 32 of 140

What does 'brake fade' mean in the context of a long descent?

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The brake pedal becoming physically stuck in the fully applied position after a hard stop
The brake lights dimming due to a wiring issue
A brief loss of steering control unrelated to the brakes
A gradual loss of braking power caused by the brakes overheating from continuous use

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Correct answer to question 32 (Air Brakes): A gradual loss of braking power caused by the brakes overheating from continuous use

Why

Brake fade happens when continuous braking generates more heat than the brakes can dissipate, gradually reducing how much stopping force they can produce, which is why steady riding of the brakes on a grade is dangerous.

Updated: November 2026

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What does 'brake fade' mean in the context of a long descent?

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