Practice question What is off-tracking? An action not supported by DPS Section 7Rear wheels or trailers following inside the tractor pathA passenger endorsement onlyA cargo paperwork shortcut Answer: B — Rear wheels or trailers following inside the tractor path The correct answer is shown above. Try the full quiz for additional practice. Practice more: TX CDL Doubles and Triples Practice Questions - Texas CDL Doubles and Triples Endorsement Test Exam →