Oklahoma HazMat Practice Test (OK) 2

4.8 out of 5 (211 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Getting your HazMat endorsement in Oklahoma is crucial for any commercial driver looking to transport hazardous materials safely and legally. The Oklahoma HazMat practice test offers an in-depth, authentic preparation experience to help you succeed. This test covers essential subjects, including hazardous materials regulations, safety protocols, labeling, emergency response, and background check procedures. Designed to mirror the real DMV permit test experience, it features questions with phrasing similar to what you'll encounter on the actual test, enabling you to fully grasp these critical concepts. Our Oklahoma DMV HazMat test consists of 20 multiple-choice questions. You'll need to answer at least 16 correctly to pass, ensuring that you are well-versed in all necessary areas. You'll explore the importance of following designated routes to avoid restricted areas, such as tunnels, bridges, and densely populated zones, minimizing risks and ensuring public safety. The permit practice test covers all the essential topics that any commercial driver needs to understand. The Oklahoma DMV practice test offers a variety of questions that provide a comprehensive review of all topics related to hazardous materials. It is designed to challenge your knowledge and help you understand the critical aspects of transporting hazardous materials. After completing the Oklahoma written driving test practice, you can review your answers, focusing on any questions you missed. Our detailed hints and explanations are invaluable in helping you learn and retain the necessary information. Although the DMV restricts the publication of actual test questions and answers, our HazMat CDL test uses a large pool of permit test questions, ensuring that you're thoroughly prepared for the DMV written test. By practicing with these questions, you'll build confidence and develop a solid understanding of the regulations and protocols necessary for handling hazardous materials.
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Sample Oklahoma HazMat Test Questions

Question 1

Which action should a driver take during a hazardous-materials emergency?

  1. A Leave the shipping papers on the driver’s seat
  2. B Keep people away and warn them about the danger
  3. C Try to contain the material regardless of personal risk
  4. D Ask untrained bystanders to handle the material

Correct answer: B – Keep people away and warn them about the danger

The Oklahoma CDL manual directs drivers to keep people away from a hazardous-materials incident and warn others of the danger. Limit the spread of material only when it is safe to do so. Call for help, communicate the hazard to responders, and provide them with the shipping papers and emergency-response information.

Source: Commercial Driver’s License Manual – Modernized Testing System — § 9.7.2, “Crashes/Incidents” ([oklahoma.gov](https://oklahoma.gov/content/dam/service-oklahoma/Documents/CDLDriverManual.pdf))

Question 2

When hazardous and nonhazardous items share a shipping paper, what may appear in the “HM” column to identify a hazmat entry?

  1. A X, or RQ when appropriate
  2. B X or PG
  3. C G or RQ
  4. D G or PG

Correct answer: A – X, or RQ when appropriate

Federal rules permit hazardous-material descriptions on a mixed shipping paper to be listed first, shown in a contrasting color, or identified in an “HM” column. When the HM-column method is used, an “X” is placed before the basic description. “RQ” may replace the X when the reportable-quantity designation is appropriate.

Source: Commercial Driver’s License Manual – Modernized Testing System — § 9.3.5, “The Item Description” ([oklahoma.gov](https://oklahoma.gov/content/dam/service-oklahoma/Documents/CDLDriverManual.pdf)), 49 CFR § 172.201(a)(1) – Preparation and retention of shipping papers ([govinfo.gov](https://www.govinfo.gov/link/cfr/49/172?link-type=pdf§ionnum=200&year=mostrecent))

Question 3

After a crash involving hazardous materials, where should other people be kept?

  1. A Near the vehicle so they can observe the cargo
  2. B Inside the vehicle with the shipping papers
  3. C Far from the scene and upwind
  4. D Downwind where responders can find them

Correct answer: C – Far from the scene and upwind

Keep people far from a hazardous-materials crash and, when possible, upwind of the scene. Warn them of the danger and call for assistance. Keep the shipping papers with you because emergency responders need accurate information about the cargo, including its proper shipping name and identification number.

Source: Commercial Driver’s License Manual – Modernized Testing System — § 9.7.2, “Crashes/Incidents” ([oklahoma.gov](https://oklahoma.gov/content/dam/service-oklahoma/Documents/CDLDriverManual.pdf))

Question 4

What is the Emergency Response Guidebook (ERG)?

  1. A A complete inventory of every hazmat load carried by drivers
  2. B A manual limited to natural-disaster response
  3. C A guide covering only radioactive-material incidents
  4. D A guide for protecting responders and the public during hazardous-materials incidents

Correct answer: D – A guide for protecting responders and the public during hazardous-materials incidents

The ERG helps firefighters, police, and industry personnel protect themselves and the public during hazardous-materials incidents. It is indexed by proper shipping name and hazardous-material identification number. Responders can obtain those details from correctly prepared shipping papers, package markings, labels, and vehicle placards.

Source: Commercial Driver’s License Manual – Modernized Testing System — § 9.7.1, “Emergency Response Guidebook (ERG)” ([oklahoma.gov](https://oklahoma.gov/content/dam/service-oklahoma/Documents/CDLDriverManual.pdf))

Question 5

What is the primary safety purpose of displaying hazardous-material placards?

  1. A To communicate the material’s hazard
  2. B To prevent the material from leaking
  3. C To show the exact amount of material aboard
  4. D To perform all of these functions

Correct answer: A – To communicate the material’s hazard

Placards are part of the hazardous-materials communication system. They warn drivers, dockworkers, enforcement personnel, and emergency responders about the type of hazard being transported. Packaging and loading procedures contain the material, while shipping documents provide more detailed cargo information.

Source: Commercial Driver’s License Manual – Modernized Testing System — § 9.1.2, “Communicate the Risk” ([oklahoma.gov](https://oklahoma.gov/content/dam/service-oklahoma/Documents/CDLDriverManual.pdf))

Question 6

What does “RQ” immediately before or after a basic shipping description indicate?

  1. A The package contains no other materials
  2. B The cargo has a specified insurance value
  3. C The shipper has already filed a spill report
  4. D The entry is a hazardous substance in a reportable quantity

Correct answer: D – The entry is a hazardous substance in a reportable quantity

Federal shipping-paper rules require “RQ” before or after the basic description when a hazardous substance is present in a reportable quantity. It identifies the material’s reportable-quantity status; it does not describe the package’s insurance value or state that a report has already been filed. The Oklahoma manual uses the same abbreviation in its sample shipping paper.

Source: Commercial Driver’s License Manual – Modernized Testing System — §§ 9.3.4, “The Shipping Paper,” and 9.3.5, “The Item Description” ([oklahoma.gov](https://oklahoma.gov/content/dam/service-oklahoma/Documents/CDLDriverManual.pdf)), 49 CFR § 172.203(c) – Additional description requirements ([govinfo.gov](https://www.govinfo.gov/content/pkg/CFR-2023-title49-vol2/pdf/CFR-2023-title49-vol2-sec172-203.pdf))

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