Practice question

What factors contribute to total stopping distance?

  1. Only brake quality
  2. Perception distance, reaction distance, and braking distance — influenced by speed, conditions, and alertness
  3. Only vehicle speed
  4. Only tire condition

Answer: B — Perception distance, reaction distance, and braking distance — influenced by speed, conditions, and alertness

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

Practice more: IA Driving Instructor Practice Questions - Iowa Behind-the-Wheel Instructor Certification Exam Exam →