CDL · Combination vehicles
How should you position the tractor as you prepare to back under a semitrailer?
Correct answer: Squarely ahead of the trailer, in line with it.
Answer options
- AAngled about 10 degrees off the trailer's centerline
- BSquarely ahead of the trailer, in line with it Correct
- CAt a slight angle so you do not shove the trailer sideways
Why
Before backing, the tractor should sit squarely in front of the trailer. Approaching at an angle can shove the trailer sideways and break its landing gear.
About this question
Topic: Combination vehicles License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
Practice the whole set
This question is part of Trailer Air Lines and Coupling (28 questions). Take the full set and check your score.
Practice Trailer Air Lines and CouplingMore questions from Trailer Air Lines and Coupling
- For a secure coupling, the fifth wheel jaws must grip which section of the kingpin?
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- When you look over a fifth-wheel coupling after hooking up, what should you see?
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- The fifth wheel jaws have closed on the kingpin, but the locking lever is not in the locked position. What does this tell you?
- During ordinary driving, some truckers apply the trailer hand valve ahead of the foot brake, believing it prevents jackknifing. Which statement about this habit is correct?
- How do you test whether the tractor and semitrailer are securely coupled?
- When you park a tank trailer, what should hold it in place?
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