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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 California hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The CA CDL hazmat test covers the information found in the California 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, you should check mirrors regularly to know where other vehicles are around you. Remember that:
there are blind spots that your mirrors cannot show you.
convex mirrors make things look larger and closer than they really are.
you should check your after the start of any trip to make sure they are properly adjusted.
2. The hazardous material ID number must appear:
on the shipping papers and on the package.
on the steering wheel.
on the package and on paperwork at the shipping destination.
3. If you hear a loud loud "bang" and the steering feels "heavy", you should:
hold the steering wheel firmly and stay off the brake.
pump the brakes until the vehicle has slowed down.
brake hard and pull off the road.
4. If you have a HazMat endorsement and renounce your U.S. citizenship:
you may transfer your endorsement to a trusted U.S. citizen.
you may keep your endorsement until your next license renewal date.
you will lose your HazMat endorsement.
5. Do you need to stop before a railroad-highway crossing if you are hauling 100 pounds of Division 4.3 (dangerous when wet) materials?
Only if you are driving at night.
6. If the drive wheels start to skid:
use the brakes to slow down.
push in the clutch to let them turn freely.
accelerate slightly to regain control.
7. When going down a steep downgrade, you should primarily brake using:
the service brakes.
the parking brake.
the braking effect of the engine.
8. When backing a trailer, turn the wheel right to make the cab go ________ and the trailer go ________.
left; left
right; left
left; right
9. When you are transporting hazardous materials, the shipping papers must be in a pouch on the driver's door or in:
the truck’s glove compartment.
a box under the driver’s seat.
clear view within your reach.
10. When it comes to hazardous materials, the technical name is:
a specific chemical that makes the product hazardous.
the generic shipping name of that material.
a medical term used by emergency personnel, currently used in scientific and technical texts, handbooks, journals.
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Hazmat CDL Test (CA)

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