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Any driver, regardless of the vehicle Class, who wants to haul hazardous materials, must add an “H” endorsement to their CDL. In order to obtain the Hazmat endorsement drivers are required to pass a Transportation Security Administration background check and a knowledge test. The New Hampshire hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The NH CDL hazmat test covers the information found in the New Hampshire CDL Manual. Study the chapter covering hazardous materials to learn how to recognize, handle, and transport Hazmat, then take this practice test to prepare for your exam!
1. When driving trucks with trailers, drivers should:
make quick lane changes.
push the brake pedal to the floor when braking.
decrease their following distance.
avoid making sudden movements with the steering wheel.
2. Strong winds can make it difficult to stay in your lane, especially when:
driving at speeds below 40 mph.
driving alongside other vehicles.
going into tunnels.
coming out of tunnels.
3. If you hear a loud loud "bang" and the steering feels "heavy", you should:
brake hard and pull off the road.
pump the brakes until the vehicle has slowed down.
check your rearview mirrors to see if you have a flat tire.
hold the steering wheel firmly and stay off the brake.
4. How can you tell if your vehicle is equipped with ABS?
Trailers will have yellow ABS malfunction lamps on the left side.
Look for yellow ABS malfunction lamps on the instrument panel.
Look under the vehicle for the wheel speed sensor wires coming from the back of the brakes.
All of the above.
5. When they package the materials, shippers must:
make them easy to handle.
make them easy to identify.
make them as light as possible.
All of the above.
6. Your engine runs a pump used during delivery of compressed gas. After product transfer, you should:
leave the engine on while you unhook the hose.
turn off the engine while you unhook the hose.
turn off the engine before you unhook the hose.
turn off the engine after you unhook the hose.
7. If you don't have a Hazardous Materials endorsement on your commercial driver's license, you can legally drive a vehicle that carries hazardous materials:
only if it requires placards.
only if it does not require placards.
only if it's a tanker.
8. Some packages of ________ bear a "transport index", which tells the degree of control needed during transportation.
radioactive materials
corrosive liquids
flammable liquids
9. To prevent getting sleepy while driving, you should:
keep cool by opening the window.
close the vent.
drive alone whenever possible.
keep the cab warm.
10. Checking the automatic transmission fluid level may require:
you to pump the brake.
the vehicle to be parked downhill.
the 4-way emergency flashers to be activated.
the engine to be running.
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CDL Hazmat Test NH

Number of questions: 30
Correct answers to pass:24
Passing score:80%
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