Practice question

Hazardous materials must be identified by which of the following?

Blue reflective tape on the trailer
Diamond-shaped placards on all four sides of the vehicle
A yellow warning light on the cab
Special license plates only

Answer: B — Diamond-shaped placards on all four sides of the vehicle

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

Practice more: TX CDL General Knowledge Practice Questions - Texas CDL General Knowledge Test Exam →