CDL · Doubles and triples
Which of these is good practice when you tow doubles or triples?
Correct answer: Keep more following distance than you would in a smaller commercial vehicle.
Answer options
- AApply the brakes on the last trailer before those on the others.
- BKeep more following distance than you would in a smaller commercial vehicle. Correct
- CLoad the lightest freight into the trailer right behind the tractor.
Why
Doubles and triples cannot be stopped or turned suddenly, so they need extra following distance. The heavier trailer belongs right behind the tractor, with the lighter one at the rear.
About this question
Topic: Doubles and triples License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
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This question is part of Pulling Doubles and Triples (24 questions). Take the full set and check your score.
Practice Pulling Doubles and TriplesMore questions from Pulling Doubles and Triples
- In a rig pulling two or more trailers, which trailer belongs in the spot right behind the tractor?
- You are pulling doubles and the trailer wheels begin to skid. What is the most likely result?
- While you are pulling doubles, the wheels of one trailer lock up and start to skid. What is the most likely result?
- A typical triple-trailer rig is a tractor pulling three semitrailers joined by two converter dollies. How many pivot (articulation) points does it have?
- If a set of doubles includes only a single 28.5-foot pup trailer, what is that configuration called?
- If you pull doubles or triples, which of the following is accurate?
- When you pull doubles or triples, why is it important to look farther ahead than usual?
- A truck pulling double trailers is 100 feet long and moving at 30 mph. The pavement is dry and you can see well. At minimum, how many seconds of following space should you leave?
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