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Doubles & Triples Practice Question 19

TDoubles & Triples · Question 19

The rear trailer in a triple can swing how much more than the tractor on a quick steering input?

• ALess
• BMany times more, due to compounded amplification
• CThe same
• DIt does not swing

Correct answer: B. Many times more, due to compounded amplification

Why: Each articulation point multiplies. A small wheel input at the tractor can cause a swing several times wider at the rear of a triple.

How this question fits the Doubles/Triples test

Each additional articulation point multiplies rearward amplification. A driver pulling triples must steer earlier, brake sooner, and inspect twice as much equipment as a single-trailer driver.

Study technique for this topic

Learn the correct trailer placement order by weight, the procedure for converting a single to a double, and the special inspection items unique to converter dollies and pintle hook assemblies.

Related Doubles/Triples practice questions

• Q7. Safety chains on a converter dolly are required because:
• Q21. A pre-trip air check on a triples combination should include:
• Q34. When inspecting brake chambers on the rear trailers, the same standards apply as on the tr…
• Q47. The single most common cause of separation in doubles/triples is:
• Q60. Drivers of doubles/triples should be especially aware that:

Continue your CDL preparation

The Doubles & Triples portion of the CDL knowledge exam covers more than this single question. Use this site's full Doubles & Triples bank to drill every topic, then test yourself with one of our state-specific practice sets to confirm you are ready for the actual DMV exam in your state. Always check your state's CDL handbook for any local addenda before the test day.

If you are still building your overall CDL foundation, start with the General Knowledge bank — every CDL applicant must pass it — and then work outward to the endorsements you plan to add.