Practice question

If your vehicle's brakes fail completely while descending a steep mountain road, what should you do?

  1. Switch off the engine and coast down in neutral
  2. Downshift to a lower gear, use the engine brake, apply the emergency brake, and steer toward a runaway truck ramp if available
  3. Jump out of the moving truck cab immediately
  4. Hold down the horn and accelerate to reach the bottom faster

Answer: B — Downshift to a lower gear, use the engine brake, apply the emergency brake, and steer toward a runaway truck ramp if available

The correct answer is shown above. Try the full quiz for additional practice.

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