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Hazardous Materials (Hazmat) Practice Question 30

H or XHazardous Materials (Hazmat) · Question 30

When parking a placarded hazmat vehicle, you generally may not park within:

• A5 feet of the road
• BWithin 5 feet of the traveled portion of a public highway except for brief reasons
• C300 feet of any building
• D1 mile of a school

Correct answer: B. Within 5 feet of the traveled portion of a public highway except for brief reasons

Why: Hazmat vehicles must not be parked within 5 feet of the traveled portion of public highway except for brief stops, and have additional restrictions near bridges, tunnels, and dwellings.

How this question fits the Hazmat test

Mishandled hazmat causes catastrophic public consequences. The endorsement is restricted, requires fingerprint background screening through the TSA, and demands deeper familiarity with regulatory paperwork than any other CDL endorsement.

Study technique for this topic

Master the Hazardous Materials Table columns, know the placarding thresholds, and learn which classes can never be loaded together. Practice locating UN/NA identification numbers and understanding the segregation chart.

Related Hazmat practice questions

• Q57. The driver of a hazmat vehicle in transit must:
• Q6. The Emergency Response Guidebook (ERG) is intended for use by:
• Q19. Class 5 hazardous materials are:
• Q33. A bill of lading for hazmat must be marked with:
• Q46. The National Response Center number is:

Continue your CDL preparation

The Hazardous Materials (Hazmat) portion of the CDL knowledge exam covers more than this single question. Use this site's full Hazardous Materials (Hazmat) bank to drill every topic, then test yourself with one of our state-specific practice sets to confirm you are ready for the actual DMV exam in your state. Always check your state's CDL handbook for any local addenda before the test day.

If you are still building your overall CDL foundation, start with the General Knowledge bank — every CDL applicant must pass it — and then work outward to the endorsements you plan to add.