CDL · Hazardous materials
Under what circumstances may you drive a vehicle whose hazmat placards are not correct?
Correct answer: Only when an emergency makes it necessary.
Answer options
- AOnly when you are confident the cargo poses no real hazard
- BUnder no circumstances whatsoever
- COnly when an emergency makes it necessary Correct
Why
Correct placards must be in place before a hazmat vehicle is driven; the single exception is an emergency, when moving the vehicle is needed to protect life or property. A driver's belief that the cargo is harmless creates no exception.
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 Labels, Markings and Placards (23 questions). Take the full set and check your score.
Practice Labels, Markings and PlacardsMore questions from Labels, Markings and Placards
- What is the minimum space required between a placard and any other marking on the vehicle?
- What is the shape of the placards displayed by vehicles that haul hazardous materials?
- What is the purpose of the placards displayed on a vehicle?
- If you look at the hazard warning label on a package of hazardous materials, what shape will you see?
- A hazardous materials label is too big to fit on the package it belongs to. What may the shipper do?
- Where is the identification number of a hazardous material displayed?
- In which case must your vehicle display placards for the hazardous materials it carries?
- Before you can tell which placards, if any, a hazmat shipment calls for, which three facts about it do you need?
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