CDL · Doubles and triples
You are unhooking the second semitrailer of a double. To what point do you crank down its landing gear?
Correct answer: Until it takes some load off the converter dolly.
Answer options
- AUntil it takes some load off the converter dolly. Correct
- BAs far as it will go, until it is fully extended.
- CExactly halfway, no matter how heavy the trailer is.
Why
The idea is to shift some of the trailer's weight onto the landing gear, not to lift the trailer completely off the dolly. With that load removed, the dolly's fifth wheel can be released and the dolly pulled clear more easily.
About this question
Topic: Doubles and triples License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
Practice the whole set
This question is part of Coupling Doubles and Converter Dollies (28 questions). Take the full set and check your score.
Practice Coupling Doubles and Converter DolliesMore questions from Coupling Doubles and Converter Dollies
- You are about to hook up a second trailer that has no spring brakes. How can you hold it in place first?
- Which description best fits a converter dolly?
- What must be done with the rear shut-off valves before air can reach the second trailer's air tanks?
- When hooking a converter dolly to the second or third trailer, how can you tell that the trailer is at the right height?
- What is unique about the way triple trailers are coupled?
- You are about to uncouple the rear trailer. What do you do first?
- You release the pintle hook before the converter dolly has been pulled out from under the second trailer. What is the likely result?
- Which statement about a converter dolly is true?
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