Practice question

Why should route planning include overhead clearance?

  1. Trailers lower automatically
  2. Clearance signs apply only to cars
  3. Trailers can strike low bridges, signs, trees, or canopies
  4. Fifth wheels measure bridge height

Answer: C — Trailers can strike low bridges, signs, trees, or canopies

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: California CDL Combination Vehicles Test Practice Questions - California Commercial Driver License Combination Vehicles Test Exam →