When should a driver deliberately use a runaway truck ramp?
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Correct!
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Correct answer to question 35 (Combination Vehicles): When brakes are fading or failing on a downgrade and stopping normally is no longer possible
Why
A runaway ramp exists specifically for the moment brakes can no longer control a descent safely, giving a vehicle a way to stop without relying on brakes that are fading or gone.
Updated: November 2026