Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which risk does the twelve volt system present despite its low voltage?

  • A.Severe burns from a short circuit through jewellery or tools
  • B.Electrocution, which occurs whenever the current passes through the body of the technician during the work
  • C.None
  • D.Damage to the control units, which is the only consequence of a short circuit within a modern vehicle system

Answer: A

A battery can deliver hundreds of amps into a shorted ring or spanner, which heats it to red heat almost instantly. Control unit damage is genuinely a consequence too. Removing jewellery before electrical work is standard practice. 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. Most errors here come from carrying a result across from a neighbouring case where it does not hold.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.