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Which consequence follows from fitting a battery of lower cranking rating?

  • A.Poor starting in cold weather and a shortened life
  • B.No consequence, since the starter draws only the current it requires whatever the rating of the battery fitted
  • C.Overcharging
  • D.Damage to the alternator, which must work harder to recharge a battery of a smaller capacity after each start

Answer: A

An undersized battery is worked beyond its design and fails early, and cranking suffers when it is cold. The starter genuinely does draw only what it needs, which makes the second option a true statement leading to a false conclusion. The shared behaviour explains why these belong together and the differences explain why both exist. Tracing the requirement back to the physical constraint that produces it makes the answer follow.

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