CDL · Doubles and triples

In a B-train (B-double), at how many points can the combination pivot?

In a B-train (B-double), at how many points can the combination pivot?

Correct answer: Two.

Answer options

  1. ATwo Correct
  2. BThree
  3. COne

Why

A B-train has no converter dolly: the second trailer couples to a fifth wheel mounted at the back of the lead trailer. That leaves only two articulation points, the tractor's fifth wheel and the lead trailer's fifth wheel.

About this question

Topic: Doubles and triples   License: CDL

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Where it applies: Asked in every state.

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