The ID number on a portable tank can’t be seen once it is on the truck. What must you do?
Right! When the tank's own ID number is hidden on the truck, the number goes on the vehicle's sides and ends instead. 📖 p. 9-13
From Section 9 of the Oklahoma Commercial Driver’s License Manual
Oklahoma CDL Hazardous Materials Practice Test
Who takes it: every CDL class (A, B and C), for the H endorsement.
Hauling placarded hazardous materials. 30 questions, 24 right to pass (80%).
Practice Hazardous Materials
- 10questions a round
- 2manual sections
Take the Hazardous Materials test
- 30questions
- 24correct to pass
- –no test taken yet
A Hazardous Materials question to try
Tap an answer to see if you’re right, and the page
Where it is in the Oklahoma Commercial Driver’s License Manual
Oklahoma answers about this test
- Can I take the Oklahoma CDL skills test in a hazmat tanker?
- Do I retake the hazmat test when I renew an Oklahoma CDL?
- How many questions are on the Oklahoma CDL general knowledge test?
- What does this Oklahoma CDL practice test cover?
- Which manual sections should I study for each Oklahoma CDL endorsement?
Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · DMV
All Oklahoma CDL tests
- General Knowledge
- Combination Vehicles
- Air Brakes
- Doubles and Triples
- Passenger
- School Bus
- Tank Vehicles
- Hazardous MaterialsYou're here
- Which tests do you need?Pick what you'll drive and get your Oklahoma CDL plan, in order.