CDL · Hazardous materials
Under federal law, a commercial driver must stop before every railroad crossing when doing which of these?
Correct answer: All of these are correct.
Answer options
- ADriving a cargo tank vehicle used for hazardous materials
- BHauling most kinds of hazardous materials that call for placards
- CAll of these are correct Correct
Why
Federal regulations require a stop 15 to 50 feet before the nearest rail for a vehicle hauling most placarded hazardous materials, for a cargo tank used for hazardous materials whether loaded or empty, and for any vehicle carrying chlorine. After looking and listening for trains, the driver crosses without shifting gears.
About this question
Topic: Hazardous materials License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
Practice the whole set
This question is part of HazMat Routes, Crossings and Checks (23 questions). Take the full set and check your score.
Practice HazMat Routes, Crossings and ChecksMore questions from HazMat Routes, Crossings and Checks
- Your vehicle displays hazmat placards and has to stop at a railroad crossing. What minimum distance must you keep between the vehicle and the nearest rail?
- You are hauling a 100-pound load of Division 4.3 material, which is dangerous when wet. Do you have to stop before crossing railroad tracks?
- Your trailer is placarded and has dual tires. How often do you need to check those tires?
- Every placarded vehicle has to carry a fire extinguisher. What is the minimum rating it must have?
- What is the lowest UL rating allowed for the fire extinguisher on a placarded vehicle's power unit?
- A vehicle displaying hazmat placards must be equipped with what kind of fire extinguisher?
- If the cargo you are carrying is Division 1.1, 1.2, or 1.3 explosives, what must you do?
- When a trailer on dual tires is hauling a placarded hazardous load, at what times must its tires be inspected?
Practice on your phone.
Practice here in your browser, or use the app with the same questions and explanations. It's free on the App Store.