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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 Michigan hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The MI CDL hazmat test covers the information found in the Michigan 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. A placarded vehicle must have at least ____ identical placards.
2. Which of the following may have reduced the clearances since the heights were posted at bridges and overpasses?
Repaving of the road
The weight of a cargo
3. Placards are:
signs put inside a vehicle used to warn others of hazardous materials.
signs placed on a vehicle to identify the hazard class of the cargo.
devices placed below a vehicle to improve traction.
4. When confronted by an aggressive driver, you should:
call the police, if you have a cell phone and can do it safely.
avoid eye contact.
All of the above.
5. To avoid rollbacks when you start, you should:
release the parking brake only when you have applied enough engine power.
if you have manual transmission, partly engage the clutch before you take your right foot off the brake.
All of the above.
6. Most heavy-duty vehicles use:
solid brakes.
air brakes.
hydraulic brakes.
7. If HazMat is spilling from your vehicle while you are driving, you should:
continue driving in order to find a phone booth.
continue driving in order to find a truck stop.
not move your vehicle any more than safety requires.
8. To know how much space you should keep in front of you:
estimate how many vehicle lengths there are between you and the vehicle ahead.
wait until the vehicle ahead of you passes a clear landmark, then count off the seconds until you reach the same spot.
estimate how many seconds it would take you to reach the vehicle ahead.
9. Your vehicle has hydraulic brakes. When you press the brake pedal while driving and the pedal goes to the floor, remember that:
pumping the brake pedal may generate enough hydraulic pressure to stop the vehicle.
the parking brake should never used to slow the vehicle.
shifting into neutral may help slow the vehicle.
10. When transporting chlorine in cargo tanks, you must have _______ in the vehicle.
an approved gas mask
5 reflective triangles
approved goggles
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MI CDL Hazmat Test

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