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Which fault does a cracked distributor cap produce?

  • A.No spark at all
  • B.Corrosion of the segments, which increases the gap between the rotor and the segment and therefore weakens the spark
  • C.Tracking between segments and a misfire
  • D.A weak spark on every cylinder, which follows from the loss of voltage through the crack in the moulding

Answer: C

Moisture and carbon follow the crack and the spark jumps to the wrong cylinder or to earth. Segment corrosion genuinely is a separate fault of the same component, which makes the last option a real observation. Misfire under load is typical. Naming what changes and what stays the same is the reliable route through questions of this shape. Tracing the requirement back to the physical constraint that produces it makes the answer follow. The shared properties explain why these belong to one family, and the differences explain why more than one exists.

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