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Which comfort system controls cabin temperature automatically?

  • A.The heater, which is adjusted manually by the occupant and therefore requires no sensors or control unit at all
  • B.Nothing
  • C.An automatic system regulating blend, blower and distribution from interior, exterior and solar sensor readings
  • D.Climate control with temperature and sun sensors

Answer: D

Climate control regulates the blend flap, the blower and the distribution to hold a set temperature. The last option lists the inputs it uses, which makes it a correct and more detailed version of the same answer. Reading the definition literally, rather than recalling a summary, avoids the usual confusion. The order in which the effects act is what decides the outcome, so it is worth establishing first. Most errors here come from carrying a result across from a neighbouring case where it does not hold.

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