CDL · Hazardous materials
What warning devices are permitted for alerting other drivers to a stopped vehicle loaded with explosives?
Correct answer: Reflective warning triangles.
Answer options
- AReflective warning triangles Correct
- BRoadside signal fires
- CLit road flares or fusees
Why
Any device that makes a flame or spark is an ignition hazard next to explosive cargo, so reflective triangles are the safe way to warn traffic. Flares, fusees and fires of any kind are off-limits.
Tip If you haul explosives, treat any warning device that burns, even a single fusee, as an ignition source you cannot use.
About this question
Topic: Hazardous materials License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
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This question is part of HazMat Emergencies and Reporting (24 questions). Take the full set and check your score.
Practice HazMat Emergencies and ReportingMore questions from HazMat Emergencies and Reporting
- Hazardous Materials Incident Reports must be sent to which federal agency?
- Where would you find the ID numbers given to hazardous chemicals?
- Following a crash that involves hazardous materials, who is responsible for notifying the appropriate government agency?
- Per the CDL manual, a hazmat incident's property damage has to be over what amount before either you or your employer is required to phone the National Response Center?
- After a hazardous materials incident, which of these would NOT require you or your employer to notify the National Response Center?
- During an emergency involving hazardous materials, what should you do?
- After a truck hauling explosives collides with another vehicle, what has to happen before the two vehicles are separated?
- At a rest area, you discover that your hazardous cargo is leaking, and there is no telephone close by. What is the best course of action?
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