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

  1. AReflective warning triangles Correct
  2. BRoadside signal fires
  3. 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

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Where it applies: Asked in every state.

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