Where should the top of a head restraint be set for an adult?

Answer and explanation

Correct answer: B. Level with the top of the head rather than at neck height

  1. Step 1: A head restraint limits backward movement of the head. Step 2. Its top should match the top of the head. Answer: Level with the top of the head rather than at neck height. Why not the others: Level with the base of the neck and collar: too low to stop the head snapping back. At shoulder level, just behind the upper back: too low to limit neck movement. Removed completely to improve the rear view: it is a safety device and removal raises whiplash risk.

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