Practice question

A diamond-shaped placard on a truck warns that the truck:

  1. May be carrying a dangerous load such as gas, explosives, or poison
  2. Is always allowed to ignore railroad crossings
  3. Is a school bus
  4. Is limited to HOV lanes

Answer: A — May be carrying a dangerous load such as gas, explosives, or poison

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

Practice more: California Road Signs Practice Practice Questions - California DMV Knowledge Test Signs, Signals, and Markings Practice Exam →