May you display placards when they are not required?
Right! Placards may be displayed even if not required, as long as they show the actual hazard. 📖 p. 9-10
From Section 9 of the New Hampshire Commercial Driver’s Manual
New Hampshire 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 New Hampshire Commercial Driver’s Manual
New Hampshire answers about this test
Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · DMV
All New Hampshire CDL tests
- General Knowledge
- Combination Vehicles
- Air Brakes
- Doubles and Triples
- Passenger
- School Bus
- Tank Vehicles
- Hazardous MaterialsYou're here
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