You find that the converter dolly's tow bar is cracked during a pre-trip inspection. What should you do?
Pick an answer
Correct!
Not quite. The correct answer is highlighted.
Correct answer to question 6 (Doubles/Triples): Do not use the dolly until it is repaired or replaced
Why
A cracked tow bar can fail under the stress of towing, which would separate a trailer from the combination, so the dolly must be repaired before use, not patched or driven cautiously.
Updated: November 2026