Home › Practice › Doubles & Triples › Question 29

Doubles & Triples Practice Question 29

TDoubles & Triples · Question 29

When approaching an exit ramp with triples, you should:

• AMaintain highway speed until the exit
• BReduce speed well before entering the ramp
• CBrake on the ramp itself
• DUse only the trailer hand valve

Correct answer: B. Reduce speed well before entering the ramp

Why: Reduce speed before entering ramps. Trailing units can roll if entering at speed; the ramp's curve amplifies the effect.

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

• Q22. A common cause of separation between a tractor and trailing unit is:
• Q36. When a triple combination encounters a steep grade, you should:
• Q49. When pulling triples in mountainous terrain, the most important driving principle is:
• Q2. A 'converter dolly' is:
• Q15. Glad hand connections must be inspected on:

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.