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Which particular risk does ignition voltage present?

  • A.A startle reaction causing injury against moving parts
  • B.Electrocution through the heart, which is the principal risk because of the very high voltage produced by the coil
  • C.None
  • D.Burns to the hand, which are caused by the current passing through the skin at the point where contact is made

Answer: A

The current is small so electrocution is unlikely, but the involuntary reaction near a running engine is the real danger. Burns genuinely can occur at the contact point, which makes the last option a real if lesser hazard. The shared behaviour explains why these belong together and the differences explain why both exist. Checking which component actually carries the load settles most questions of this kind at once. The shared properties explain why these belong to one family, and the differences explain why more than one exists.

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