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Discussion

Consider the following pairs of device and function.

Pretensioner - removes belt slack on impact

Load limiter - yields above a set belt force

Clock spring - carries circuits through the column

Sun load sensor - measures cabin humidity

How many of the pairs given above are correctly matched?

  • A.Only two
  • B.All four
  • C.Only three
  • D.Only one

Answer: C

A sun load sensor measures solar intensity and often its direction, not humidity. The other three pairings are correct, and together they cover the restraint and comfort systems most often disturbed during repair. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision. The shared behaviour explains why these belong together and the differences explain why both exist. The order in which the effects act is what decides the outcome, so it is worth establishing first.

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