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Hazardous Materials (Hazmat) Practice Question 39

H or XHazardous Materials (Hazmat) · Question 39

When checking placards before driving, you should verify:

• AThey match the shipping papers
• BThey are not damaged or worn beyond legibility
• CThey are correctly placed on each side and end of the unit
• DAll of these

Correct answer: D. All of these

Why: Placards must match the shipment, be readable, and appear on all four sides of the transport unit. Missing or wrong placards are roadside-violation triggers.

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

• Q20. Class 6 hazardous materials are:
• Q33. A bill of lading for hazmat must be marked with:
• Q47. A 'Dangerous' placard may be used in place of separate placards for non-bulk shipments con…
• Q60. Bulk packaging is generally:
• Q9. Hazmat ID numbers begin with:

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.