Book

This informative book is designed for students who want to pass the quiz with confidence. Packed with clear explanations and visual examples, it keeps you engaged while helping you learn faster and succeed.

1. Head restraints

Head restraints (also known as headrests) are the padded extensions found at the top of a car seat’s backrest, designed to support the occupant's head and neck, especially in the event of a rear-end collision. Head restraints are not just for comfort—they're a critical safety feature. Proper adjustment can greatly reduce the chance of neck injuries, especially in rear-end crashes.

  • Prevent or reduce whiplash injuries by limiting the backward movement of the head.
  • Support the neck and spine during sudden acceleration or impact.
  • Work together with seatbelts and seat design to improve overall safety.
  • How to Adjust Properly:
    • Top of the restraint should be at least level with the top of your head.
    • The back of your head should be as close to the restraint as possible.
    • Don’t set it too low—this can increase injury risk.
Head restraints

An adjustable headrest of a car. © Wikimedia.org/BrendelSignature, CC BY-SA

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