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.
Source: Alabama CDL Manual
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.
Alabama CDL HAZMAT Test Info
Questions on Exam
30
Passing Score
80%
Time Limit
Typically 30 minutes; varies by testing location
Age Requirements
Intrastate: 18+ · Interstate: 21+
Alabama Law Enforcement Agency (ALEA)
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More CDL HAZMAT Practice Questions
- Which of the 9 hazard classes may NOT be transported in a temperature-controlled trailer?
- Your vehicle contains explosives, oxidizer, or flammables. No one may smoke within ____ feet of the vehicle.
- It is recommended that a driver refrain from smoking or using an open flame within 25 feet of:
- A vehicle placarded for hazardous materials must have placards on ____ sides.
- What is the purpose of placards?