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Hazardous Materials Free CDL Practice Tests
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Prepare For The Hazardous Materials Portion Of Your CDL Written Exams

Hazardous Materials Questions

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Signs identifying the hazard class of the cargo and placed on the outside of the vehicle are known as:
  • Placards
  • Placecards
  • Package labels
  • Shipping papers
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From The CDL Manual

Placards —

Placards are used to warn others of hazardous materials. Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo. A placarded vehicle must have at least four identical placards. They are put on the front, rear and both sides of the vehicle (see Figure 9-3 below).

Placards must be readable from all four directions. They are 10 3/4-inches square, square-on-point, in a diamond shape. Cargo tanks and other bulk packaging also display the ID number of their contents on placards, or orange panels or white square-on-point displays that are the same size as placards, and placed near the placards.

Next
How many placards must a hazmat vehicle display, at minimum?
  • 5
  • 2
  • 4
  • 3
Click here to look up the answer

From The CDL Manual

Placards —

Placards are used to warn others of hazardous materials. Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo. A placarded vehicle must have at least four identical placards. They are put on the front, rear and both sides of the vehicle (see Figure 9-3 below).

Placards must be readable from all four directions. They are 10 3/4-inches square, square-on-point, in a diamond shape. Cargo tanks and other bulk packaging also display the ID number of their contents on placards, or orange panels or white square-on-point displays that are the same size as placards, and placed near the placards.

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Next
Hazmat placards will normally display the hazardous cargo's:
  • Chemical composition
  • ID number
  • Weight
  • Nickname
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From The CDL Manual

Placards —

Placards are used to warn others of hazardous materials. Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo. A placarded vehicle must have at least four identical placards. They are put on the front, rear and both sides of the vehicle (see Figure 9-3 below).

Placards must be readable from all four directions. They are 10 3/4-inches square, square-on-point, in a diamond shape. Cargo tanks and other bulk packaging also display the ID number of their contents on placards, or orange panels or white square-on-point displays that are the same size as placards, and placed near the placards.

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Next
Before transporting a material, drivers should check:
  • With the loader and ask if it's hazardous
  • On the DOT website
  • That the weather will be nice
  • For it on the three main hazardous materials lists
Click here to look up the answer

From The CDL Manual

Lists of Regulated Products —

There are three main lists used by shippers, carriers and drivers when identifying hazardous materials. Before transporting a material, look for its name on three lists. Some materials are on all lists, others on only one. Always check the following lists:

  • Section 172.101: Hazardous Materials Table
  • Appendix A to Section 172.101: List of Hazardous Substances and Reportable Quantities
  • Appendix B to Section 172.101: List of Marine Pollutants
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Next
One of how many different symbols could appear in column one of the hazardous materials table?
  • 6
  • 4
  • 8
  • 2
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From The CDL Manual

Column 1 –

Six different symbols may appear in Column 1

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Next
What symbol in column one of the hazardous materials table Identifies a proper shipping name that is used to describe materials in international transportation?
  • A
  • I
  • G
  • W
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From The CDL Manual

Column 1 –

Six different symbols may appear in Column 1:

  • (+) 1. Fixes the proper shipping name, hazard class and packing group to use, even if the material does not meet the hazard class definition.
  • (A) 2. Means the hazardous material described in Column 2 is subject to the HMR only when offered or intended for transport by air unless it is a hazardous substance or hazardous waste.
  • (D) 3. Means the proper shipping name is appropriate for describing materials for domestic transportation, but may not be proper for international transportation.
  • (G) 4. Identifies the proper shipping names for which one or more technical names of the hazardous material must be entered in parentheses in association with the basic description.
  • (I) 5. Identifies a proper shipping name that is used to describe materials in international transportation. A different shipping name may be used when only domestic transportation is involved.
  • (W) 6. Means the hazardous material described in Column 2 is subject to the HMR only when offered or intended for transportation by water unless it is a hazardous substance, hazardous waste.
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A hazardous material intended for only transport by water will be indicated by what letter in column 1 of the hazmat table?
  • W
  • A
  • G
  • D
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From The CDL Manual

Column 1 –

Six different symbols may appear in Column 1:

  • (+) 1. Fixes the proper shipping name, hazard class and packing group to use, even if the material does not meet the hazard class definition.
  • (A) 2. Means the hazardous material described in Column 2 is subject to the HMR only when offered or intended for transport by air unless it is a hazardous substance or hazardous waste.
  • (D) 3. Means the proper shipping name is appropriate for describing materials for domestic transportation, but may not be proper for international transportation.
  • (G) 4. Identifies the proper shipping names for which one or more technical names of the hazardous material must be entered in parentheses in association with the basic description.
  • (I) 5. Identifies a proper shipping name that is used to describe materials in international transportation. A different shipping name may be used when only domestic transportation is involved.
  • (W) 6. Means the hazardous material described in Column 2 is subject to the HMR only when offered or intended for transportation by water unless it is a hazardous substance, hazardous waste.
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Next
The name of the material on the shipping paper must:
  • Must not be in italics
  • Be its proper name
  • All of these are important
  • Must match the name in the hazmat table
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From The CDL Manual

Column 2 –

Lists the proper shipping names and descriptions of regulated materials. Entries are in alphabetical order so you can more quickly find the right entry. Use the name of the material from the shipping paper. The table shows proper shipping names in Roman type. The shipping paper must show proper shipping names. Names shown in italics are not proper shipping names.

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Next
If a hazard class is listed as "Forbidden", the driver should:
  • Refuse to transport the load
  • Hide the placards
  • Drive extra cautiously
  • Call the DOT first
Click here to look up the answer

From The CDL Manual

Column 3 –

Shows a material’s hazard class or division, or the entry “Forbidden.” Never transport a “Forbidden” material. Placard shipments are based on the quantity and hazard class. You can decide which placards to use if you know these three things:

  • Material’s hazard class.
  • Amount being shipped.
  • Amount of all hazardous materials of all classes on your vehicle.
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Next
To decide which placards to use, you need to know the amount being shipped, the material's hazard class, and:
  • The weather forecast
  • The total amount of all hazardous materials of all classes on your vehicle
  • The desired driving route restrictions
  • What the material will be used for
Click here to look up the answer

From The CDL Manual

Column 3 –

Shows a material’s hazard class or division, or the entry “Forbidden.” Never transport a “Forbidden” material. Placard shipments are based on the quantity and hazard class. You can decide which placards to use if you know these three things:

  • Material’s hazard class.
  • Amount being shipped.
  • Amount of all hazardous materials of all classes on your vehicle.
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