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CDL Hazardous Materials (H) Endorsement Test

Hazardous Materials Table: practice questions

Our CDL Hazmat bank has 18 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.

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Question 1

What does a "W" in column 1 of the table mean?

  1. A waste that needs a manifest
  2. Regulated only by water, unless a hazardous substance, waste or marine pollutant
  3. Water-reactive; keep the material dry during loading and transport
  4. Warning label required
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B. Regulated only by water, unless a hazardous substance, waste or marine pollutant — (W) means subject to the HMR only when transported by water unless it is a hazardous substance, hazardous waste or marine pollutant (CDL Manual 9.3.3)

Question 2

What does column 5 of the table show?

  1. The labels required
  2. The ID number
  3. The quantity limits
  4. The packing group
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D. The packing group — Column 5 shows the packing group, in Roman numerals (CDL Manual 9.3.3)

Question 3

What do the letters "NA" before an ID number mean?

  1. The material is not assigned a hazard class in the table
  2. The number is not available
  3. The name is used only in the US and to and from Canada
  4. The material is not allowed by air
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C. The name is used only in the US and to and from Canada — NA is associated with proper shipping names used only within the United States and to and from Canada (CDL Manual 9.3.3)

Question 4

What does a "+" in column 1 of the Hazardous Materials Table mean?

  1. The material is forbidden on highways unless a special permit is held
  2. The material is regulated only by air
  3. Use the listed name, class and packing group even if the material doesn't meet the class definition
  4. The name is generic and needs a technical name
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C. Use the listed name, class and packing group even if the material doesn't meet the class definition — (+) shows the proper shipping name, hazard class and packing group to use, even if the material doesn't meet the hazard class definition (CDL Manual 9.3.3)

Question 5

For highway transport, when is the List of Marine Pollutants used?

  1. For every package of any size that is shipped near the coast
  2. For containers of 119 gallons or more without a placard or label
  3. Only for shipments near the coast
  4. Only for Class 3 liquids
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B. For containers of 119 gallons or more without a placard or label — For highway transportation the marine pollutant list is only used for chemicals in a container with a capacity of 119 gallons or more without a placard or label (CDL Manual 9.3.3)

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