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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. To know how much space you should keep in front of you:
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 vehicle lengths there are between you and the vehicle ahead.
estimate how many seconds it would take you to reach the vehicle ahead.
2. Which of the following may have reduced the clearances since the heights were posted at bridges and overpasses?
The weight of a cargo
Repaving of the road
3. Placards are used:
to warn other drivers about the risks of tailgating.
to warn other drivers when the load on the vehicle extends 4 feet or more beyond the rear of the body.
to warn others of hazardous materials.
4. If the hazardous material label won't fit on the package:
the shipper may put the label on a tag securely attached to the package.
the shipper may use a QR Code instead.
the shipper may reduce the size of the label to fit on the package.
5. Never drive a placarded vehicle near open fires unless:
the vehicle is vehicle transporting explosives.
you can safely pass the fire without stopping.
the vehicle is equipped with fire sprinklers.
6. You are more at risk of being fatigued:
after getting more than 8 hours of sleep.
when stopping periodically during long trips.
when driving alone.
7. Nitric acid should:
stacked to the ceiling.
loaded above other products.
not be loaded above any other product.
8. Placards must be placed:
on the rear only.
on the front only.
on the front, rear and both sides of the vehicle.
9. Some packages of ________ bear a "transport index", which tells the degree of control needed during transportation.
corrosive liquids
radioactive materials
10. If you have to drive off the road, you should:
keep one set of wheels on the pavement, if possible.
brake as hard as you can to maintain control.
fully apply the brakes until your speed has dropped to about 20 mph.
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CA CDL Hazmat Test

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