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

Discussion

Which device captures the vapour on the vehicle?

  • A.The catalyst
  • B.A canister filled with activated carbon, which adsorbs the hydrocarbons and holds them until the engine can purge it
  • C.A canister of activated carbon
  • D.The fuel tank itself, whose sealed construction retains the vapour until it is drawn into the engine to be burnt

Answer: C

Activated carbon adsorbs the hydrocarbons and releases them when purged. The last option describes exactly that operation, which makes it a correct and more detailed version of the same answer. Most errors here come from carrying across a result from a neighbouring case where it does not hold. A symptom that appears under one condition and not another is what narrows the diagnosis quickly. 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.