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CDL Hazmat Endorsement Practice Test

345 practice questions across 11 topics, each with a written explanation of why the correct answer is correct. Start below — the first questions are free and no account is required.

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Topics on the CDL Hazmat Endorsement exam

Sample CDL Hazmat Endorsement questions

Hazmat General

Which endorsement must a CDL driver have to transport hazardous materials in amounts requiring placards?

  1. A. P
  2. B. H
  3. C. N
  4. D. T

Answer: B. The 'H' endorsement is required for driving vehicles transporting hazardous materials in quantities that require placarding. 'N' is for tankers, 'T' is for doubles/triples, and 'P' is for passengers.

Hazmat Classes

Hazard Class 1 materials are defined as:

  1. A. Gases
  2. B. Corrosives
  3. C. Explosives
  4. D. Flammable Liquids

Answer: C. Class 1 consists of Explosives, divided into six divisions (1.1 through 1.6) based on their hazard level.

Hazmat Placards

A vehicle transporting hazardous materials must have placards on how many sides?

  1. A. 1 (rear only)
  2. B. 2 (front and rear)
  3. C. 3 (rear and both sides)
  4. D. 4 (front, rear, and both sides)

Answer: D. Placards must be displayed on all four sides of the vehicle (front, rear, left, and right).

Work through every topic on the CDL Hazmat Endorsement question directory, or start the timed practice test above.

CDL Hazmat Endorsement exam — frequently asked questions

How many questions are on the CDL Hazmat Endorsement exam?

The CDL Hazmat Endorsement exam typically has Varies by state. The exact count varies by state and exam version. VoltExam gives you 345 practice questions covering every topic tested.

What score do you need to pass the CDL Hazmat Endorsement exam?

The passing score for the CDL Hazmat Endorsement exam is typically 80% minimum. Scoring significantly above the minimum on practice tests before exam day is strongly recommended to account for real-exam pressure.

What is the pass rate for the CDL Hazmat Endorsement exam?

The sponsor of the CDL Hazmat Endorsement exam does not publish a pass rate, so VoltExam does not estimate one or claim that practice predicts the result.

How long should I study for the CDL Hazmat Endorsement exam?

Most candidates study Varies for the CDL Hazmat Endorsement exam. Study time varies based on prior experience. Focusing on practice questions with explanations is the most time-efficient preparation method.

What topics are on the CDL Hazmat Endorsement exam?

The CDL Hazmat Endorsement exam covers topics including: Hazmat General, Hazmat Classes, Hazmat Placards, Hazmat Segregation, Hazmat Shipping Papers, and 6 more topic areas. VoltExam's free study mode organizes 345 quick-study questions by concept so you can target weak areas efficiently.