Practice 15 for CDL Exam learners in Massachusetts: 25 questions, explained answers, and a review routine.
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Question 1
1
What is the relationship between the L and Z brake-related restriction codes on a CDL?
Question 2
2
Under what circumstance is a restriction code such as L or Z automatically added to a driver's CDL?
Question 3
3
In a combination vehicle emergency where the trailer begins to swing out (trailer jackknife) during braking on a slick road, what is the recommended driver action?
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