You have loaded a hazardous material into a cargo tank. What must you do before you move the vehicle?
Answer: A
Close all manholes and valves and be sure they are free of leaks.
It is a violation to move a vehicle containing any amount of hazardous materials with a valve or covers opened unless it is completely empty. After loading a tanker, verify that all valves are completely closed and that any manhole covers are back in position prior to moving the vehicle.
All choices
- AClose all manholes and valves and be sure they are free of leaks.
- BPlace shipping papers within your reach.
- CHave the loading observers sign off on the shipping papers.
Why the other answers are wrong
B. Place shipping papers within your reach.
Choice B is wrong because placing shipping papers within reach is required but not sufficient before moving the vehicle loaded with hazardous materials.
C. Have the loading observers sign off on the shipping papers.
Choice C is wrong because loading observers do not need to sign off on shipping papers before moving the vehicle.
CDL HAZMAT Test Info
Questions on Exam
30
Passing Score
80%
Time Limit
Typically 30 minutes; varies by testing location
The HAZMAT test content is federally standardized, so this question applies in every state. Age limits, fees, and testing procedures do vary — check your state's CDL requirements.
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More CDL HAZMAT Practice Questions
- A driver who transports controlled radioactive material must have had special training by the carrier within the last ____ years.
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- How many sides of a tractor-trailer require placards when transporting hazardous materials?