🚛Alabama Doubles/Triples — Question 4 of 10
You should check trailer height before connecting a converted dolly to a second or third trailer. The trailer height is right when:
Answer: B
The trailer will be raised slightly when the converter dolly is backed under it.
The height of the trailer needs to be positioned so that the kingpin is slightly lower than the fifth wheel. When the converter dolly (or truck) is backed into it the trailer raises slightly on the fifth wheel.
Source: Alabama CDL Manual
All choices
- AThe center of the kingpin will line up with the locking jaws.
- BThe trailer will be raised slightly when the converter dolly is backed under it.
- CThe fifth wheel will be touching the trailer.
Alabama CDL Doubles/Triples Test Info
Questions on Exam
20
Passing Score
80%
Time Limit
Typically 30 minutes; varies by testing location
Age Requirements
Intrastate: 18+ · Interstate: 21+
Alabama Law Enforcement Agency (ALEA)
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More CDL Doubles/Triples Practice Questions
- The purpose of a converter dolly is to:
- Converter dollies:
- The converter dolly air tank drain valve on coupled double/triple trailers should be:
- Crack-the-whip effect occurs when:
- Which of these statements about the handling of doubles and triples is true?