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

Discussion

Which circuit connects a towed trailer's lighting?

  • A.A standardised socket carrying each lighting function
  • B.A single wire carrying the whole of the lighting, which is switched within the trailer according to the function
  • C.A wireless link
  • D.A socket with a bypass relay module, which isolates the trailer lamps from the vehicle wiring on modern vehicles

Answer: A

Seven or thirteen pin sockets carry each function on its own pin with a common earth. Bypass relay modules genuinely are required on vehicles that monitor bulb condition, which makes the last option a real modern necessity. Tracing the requirement back to the physical constraint that produces it makes the answer follow. The order in which the effects act is what decides the outcome, so it is worth establishing first. A limit that survives making every external component ideal is an intrinsic one, and worth knowing for that reason.

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

Post your comment

Please log in or register to post a comment.