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

Discussion

Which purpose does overrun fuel cut serve?

  • A.Providing engine braking, which is increased when the fuel supply is interrupted during a period of deceleration
  • B.Saving fuel and reducing emissions when decelerating
  • C.Protecting the catalyst, which would otherwise be damaged by the unburnt fuel passing through it during deceleration
  • D.Cooling the engine

Answer: B

Injecting nothing while the engine is driven by the vehicle saves measurable fuel. Engine braking genuinely does increase slightly, which makes the last option a real accompanying effect of the same strategy. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision. Working the distinction through on a single concrete case fixes it more firmly than any rule of thumb. Reading the definition literally, rather than recalling a summary, avoids the usual confusion.

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

Post your comment

Please log in or register to post a comment.