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CDL hazardous materials practice test 2

25 more questions on hazardous materials, written from the Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0).

25 questions

  1. Question 1How long must a hazmat employer keep an employee's training record?

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    A: As long as the employee works with hazardous materials and for 90 days afterward. Employers keep a training record for each employee as long as that employee works with hazardous materials and for 90 days thereafter, as 49 CFR 172.704(d) also requires. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9 Hazardous Materials (introduction), page 9-1.

  2. Question 2How do cargo tanks and other bulk packaging show the identification number of their contents?

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    A: On placards, orange panels, or white square-on-point displays the same size as placards. On a cargo tank or other bulk package, the contents' ID number goes on a placard, an orange panel, or a white square-on-point display of placard size. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.3.3 Lists of Regulated Products, page 9-4.

  3. Question 3After hazardous materials are loaded, what does the manual say about opening packages during the trip?

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    A: Do not open any package during the trip. After loading, do not open any package during your trip, and never transfer hazardous materials from one package to another in transit. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.4.1 General Loading Requirements, page 9-10.

  4. Question 4How is the Emergency Response Guidebook (ERG) indexed?

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    A: By proper shipping name and hazardous materials identification number. The ERG is indexed by proper shipping name and identification number, which is why the shipping paper, labels and placards must be correct. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.7.1 Emergency Response Guidebook (ERG), page 9-15.

  5. Question 5You may park on private property with Division 1.1, 1.2 or 1.3 explosives only if what is true?

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    D: The owner is aware of the danger. With explosives on board, park on private property only if the person in charge knows about the danger (49 CFR 397.7(a)(2)). Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.6.1 Parking with Division 1.1, 1.2, or 1.3 Explosives, page 9-13.

  6. Question 6Who must provide the hazardous materials training and testing that drivers are required to have?

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    B: The driver's employer or its designated representative. The regulations require training and testing for all hazmat drivers, and the employer or a designated representative must provide it. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9 Hazardous Materials (introduction), page 9-1.

  7. Question 7The words INHALATION HAZARD appear on a shipping paper for a small amount of material. Which placards are required?

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    B: The POISON INHALATION HAZARD or POISON GAS placard, in addition to the hazard class placard. If INHALATION HAZARD appears on the shipping paper or package, display the POISON INHALATION HAZARD or POISON GAS placard in addition to other required placards, even for small amounts. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.3.3 Lists of Regulated Products (Appendix A: Hazardous Substances and Reportable Quantities), page 9-6.

  8. Question 8Which hazmat package may you empty while it is on the vehicle?

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    B: A cargo tank. A cargo tank may be emptied while on the vehicle. Any other hazmat package must not be emptied while it is on the vehicle. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.4.1 General Loading Requirements, page 9-10.

  9. Question 9At the scene of a hazmat crash, which of these is part of your job?

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    B: Keep people away, limit the spread of material only if you can safely do so, and give responders the shipping papers. Your job is to keep people away, limit the spread of material only if safe, communicate the danger to responders and give them the shipping papers and emergency response information. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.7.2 Crashes/Incidents, page 9-15.

  10. Question 10When may you park a placarded vehicle that is NOT carrying explosives within five feet of the traveled part of the road?

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    A: Only if your work requires it, and only briefly. A placarded vehicle without explosives may stop within 5 feet of the road only briefly and only when the work requires it (49 CFR 397.7(b)). Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.6.2 Parking a Placarded Vehicle Not Transporting Division 1.1, 1.2, or 1.3 Explosives, page 9-14.

  11. Question 11Besides general hazmat training, what must the required training for all hazmat drivers include?

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    C: Security risks, including how to recognize and respond to possible security threats. Security awareness is part of the required training for every hazmat driver: you must learn the security risks and how to spot and react to a possible threat. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9 Hazardous Materials (introduction), page 9-1.

  12. Question 12For highway transportation, when is Appendix B (the List of Marine Pollutants) used?

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    C: Only for chemicals in a container of 119 gallons or more that has no placard or label under the HMR. On the highway, the marine pollutant list only matters for a container of 119 gallons or more that carries no placard or label under the HMR. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.3.3 Lists of Regulated Products (Appendix B: List of Marine Pollutants), page 9-6.

  13. Question 13Cargo heater rules usually forbid using cargo heaters, including automatic heater/air conditioner units, when loading which classes?

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    C: Class 1, Division 2.1 and Class 3. Special cargo heater rules apply to Class 1 (explosives), Division 2.1 (flammable gas) and Class 3 (flammable liquids); don't load them in a heated cargo space unless you know all the rules. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.4.1 General Loading Requirements, page 9-10.

  14. Question 14After a hazmat crash, where should you keep bystanders?

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    C: Far away and upwind. The checklist says keep people far away and upwind, warn others, call for help and keep the shipping papers with you. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.7.2 Crashes/Incidents, page 9-15.

  15. Question 15Which is NOT allowed with a placarded trailer carrying hazardous materials?

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    B: Uncoupling it and leaving it on a public street. Never drop a trailer loaded with hazardous materials and leave it on a public street. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.6.2 Parking a Placarded Vehicle Not Transporting Division 1.1, 1.2, or 1.3 Explosives, page 9-14.

  16. Question 16Which drivers need special training in addition to standard hazmat training, according to the manual?

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    D: Drivers of cargo tanks and portable tanks. The manual says drivers transporting cargo tanks and portable tanks must receive specialized training, as must drivers of certain flammable gases and highway route controlled quantities of radioactive materials. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9 Hazardous Materials (introduction), page 9-1.

  17. Question 17What does the Marine Pollutant marking look like?

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    D: A white triangle with a fish and an X through the fish. Bulk packages of a marine pollutant display the Marine Pollutant marking, a white triangle with a fish and an X through it; the vehicle must show it too. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.3.3 Lists of Regulated Products (Appendix B: List of Marine Pollutants), page 9-6.

  18. Question 18Which hazard classes may NOT be carried as overhang or tailgate loads?

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    D: Class 1, Class 4 and Class 5. Explosives (Class 1), flammable solids (Class 4) and oxidizers (Class 5) may not be carried as overhang or tailgate loads. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.4.1 General Loading Requirements, page 9-10.

  19. Question 19You feel the trailer doors and they are hot. What should you do?

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    D: Do not open them; you may have a cargo fire, and opening lets air in. Hot doors suggest a cargo fire. Keep them shut: fresh air can make it flare up, while a fire starved of air often just smolders until firefighters get there. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.7.3 Fires, page 9-16.

  20. Question 20How close may you park any vehicle carrying hazardous materials to an open fire?

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    C: Not within 300 feet. Do not park within 300 feet of an open fire (49 CFR 397.11(b)). Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.6.2 Parking a Placarded Vehicle Not Transporting Division 1.1, 1.2, or 1.3 Explosives, page 9-14.

  21. Question 21The hazardous materials rules that tell shippers how to package materials and drivers how to load, transport and unload them are called what?

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    A: Containment rules. Rules that tell shippers how to package safely and drivers how to load, transport and unload are called containment rules. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.1.1 Contain the Material, page 9-2.

  22. Question 22The name of the hazardous material printed on a package should match what?

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    B: The name on the shipping paper. An important package marking is the name of the hazardous material, which is the same name shown on the shipping paper. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.3.7 Package Markings and Labels, page 9-8.

  23. Question 23Explosives, flammable solids and oxidizers must be loaded in a closed cargo space unless all packages are what?

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    A: Fire and water resistant, or covered with a fire and water resistant tarp. These classes must ride in a closed cargo space. The only exception is when every package is fire and water resistant, or is covered by a tarp that is. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.4.1 General Loading Requirements, page 9-11.

  24. Question 24How should you try to identify a hazardous material that is leaking from your vehicle?

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    A: By using the shipping papers, labels or package location. Identify leaking hazardous materials by shipping papers, labels or package location. Never touch it or try to identify it by smell; toxic gases can destroy your sense of smell. Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.7.3 Fires, page 9-16.

  25. Question 25Which of these lets you count as attending a parked placarded vehicle?

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    D: Being within 100 feet of the vehicle with it in clear view. You are attending the vehicle if you are in it, awake and out of the sleeper, or within 100 feet with a clear view of it (49 CFR 397.5(d)(1)). Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0): 9.6.3 Attending Parked Vehicles, page 9-14.

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Our own questions, written from the Missouri Commercial Driver License Manual (AAMVA model CDL manual, Version 4.0), official manual, and checked against it.