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

Discussion

Which quantity is the dwell angle?

  • A.The angle before top dead centre at which the spark occurs, which is the ignition timing of the engine
  • B.The point gap
  • C.The angle through which the distributor rotates between successive sparks, which depends upon the number of cylinders
  • D.The crankshaft or distributor angle during which the points are closed

Answer: D

Dwell is the period during which primary current builds, and too little leaves the coil insufficiently charged. Ignition timing is the separate quantity describing when the spark occurs. Dwell and point gap vary inversely. Tracing the requirement back to the physical constraint that produces it makes the answer follow. 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.

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

Post your comment

Please log in or register to post a comment.