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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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An ID number for material that is used for items only shipped in the US and Canada will be preceded by:
  • AU
  • UN
  • AN
  • NA
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From The CDL Manual

Column 4 –

Lists the identification number for each proper shipping name. Identification numbers are preceded by the letters “UN” or “NA.” The letters “NA” are associated with proper shipping names used only within the United States and to and from Canada. The identification number must now appear first on the shipping paper as part of the shipping description and also appear on the package. The identification number should always appear on cargo tanks and other bulk packaging. Police and firefighters use this number to quickly identify the hazardous materials.

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The hazmat ID number should appear on all of the following except:
  • Cargo tanks
  • Packages
  • Shipping papers
  • On a window sticker
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From The CDL Manual

Column 4 –

Lists the identification number for each proper shipping name. Identification numbers are preceded by the letters “UN” or “NA.” The letters “NA” are associated with proper shipping names used only within the United States and to and from Canada. The identification number must now appear first on the shipping paper as part of the shipping description and also appear on the package. The identification number should always appear on cargo tanks and other bulk packaging. Police and firefighters use this number to quickly identify the hazardous materials.

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Why is displaying the hazmat ID number so important?
  • So other truck drivers know to stay away from you
  • To warn other drivers
  • In an emergency, fire and police can quickly identify it
  • To get through tollbooths quicker
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From The CDL Manual

Column 4 –

Lists the identification number for each proper shipping name. Identification numbers are preceded by the letters “UN” or “NA.” The letters “NA” are associated with proper shipping names used only within the United States and to and from Canada. The identification number must now appear first on the shipping paper as part of the shipping description and also appear on the package. The identification number should always appear on cargo tanks and other bulk packaging. Police and firefighters use this number to quickly identify the hazardous materials.

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The letters 'RQ' appearing next to the basic description indicate:
  • The material is being transported in a reportable quantity
  • The material is of reputable quality
  • You should be engaging in responsible questioning with the shipper
  • The material is being transported in a ridiculous quantity
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From The CDL Manual

Appendix A to §172.101–Hazardous Substances and Reportable Quantities:

DOT and EPA need to know about any spills of hazardous substances named in the List of Hazardous Substances and Reportable Quantities (see Figure 9-5). Column 2 shows each product’s reportable quantity (RQ).

When these materials are being transported in a reportable quantity or greater in one package, the shipper displays the letters RQ on the shipping paper and package. The letters RQ may appear before or after the basic description. You or your employer must report any spill of these materials that occurs in a reportable quantity.

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When spills of a reportable quantity occur, the responsibility to report it lays with either the driver or:
  • The shipper
  • The poilce
  • The DOT
  • His/her employer
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From The CDL Manual

Appendix A to §172.101–Hazardous Substances and Reportable Quantities:

DOT and EPA need to know about any spills of hazardous substances named in the List of Hazardous Substances and Reportable Quantities (see Figure 9-5). Column 2 shows each product’s reportable quantity (RQ).

When these materials are being transported in a reportable quantity or greater in one package, the shipper displays the letters RQ on the shipping paper and package. The letters RQ may appear before or after the basic description. You or your employer must report any spill of these materials that occurs in a reportable quantity.

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A separate additional placard is required for materials that:
  • Are poisons
  • Are inhalation hazards
  • Weigh more than 60,000 lbs
  • Have high viscosity
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From The CDL Manual

If the words POISON INHALATION or TOXIC INHALATION HAZARD appear on the shipping paper, package or label, the rules require that the transport vehicle be placarded with a POISON INHALATION HAZARD or POISON GAS placard, as appropriate.

These placards must be used in addition to other placards that may be required by the product’s hazard class. INHALATION HAZARD materials always require the appropriate placard, even for small amounts of these materials.

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The shipping papers must include all of the following except:
  • Proper shipping descriptions, in their proper sequence
  • Page numbers if there is more than one page
  • A certification by the shipper that the shipment was properly prepared
  • All of these things must be included on the shipping papers
Click here to look up the answer

From The CDL Manual

Shipping Paper —

The shipping paper (also called a Bill of Lading) shown in Figure 9-6 below describes a shipment. A shipping paper for hazardous material must include:

  • Page numbers if the shipping paper has more than one page. The first page must tell the total number of pages. (e.g., Page 1 of 4).
  • A proper shipping description in its proper sequence for each hazardous material.
  • A shipper?s certification, signed by the shipper, saying the shipment was prepared according to the rules.
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Shipping papers describing both hazmat and non-hazmat materials will describe the hazmat in one of the following ways except:
  • Listed on the back page of the shipping papers
  • Highlighted in a contrasting color
  • Identified by an 'X', in a column labeled 'HM'
  • Described first
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From The CDL Manual

Item Description —

If a shipping paper describes both hazardous and non-hazardous products, the hazardous materials will either be:

  • Described first, or
  • Highlighted in a contrasting color, or
  • Identified by an “X” placed before the shipping name in a column captioned “HM.” The letters “RQ” may be used instead of “X” if a reportable quantity is present in one package.
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The shipping description of a hazmat on the shipping paper must include all of the following except:
  • What the product will be used for
  • The proper DOT shipping name
  • The packing group
  • The ID number of the material
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From The CDL Manual

Item Description —

The basic shipping description of a hazardous material on a shipping paper must include the (1) identification number (preceded by the letters UN or NA); (2) DOT proper shipping name; (3) hazardous class or division number of a product (must include subsidiary hazard class when required); and (4) packing group for a product in a roman numeric pattern (may precede with the letters PG).

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The shipping description must appear in what order?
  • ID Number, Shipping Name, Packing Group, Class/Division Number
  • Class/Division Number, ID Number, Shipping Name, Packing Group
  • ID number, Shipping Name, Class/ Division Number, Packing Group
  • Shipping Name, Class/Division Number, ID Number, Packing Group
Click here to look up the answer

From The CDL Manual

The basic description of hazardous materials includes the proper shipping name, hazard class or division, the identification number and the packing group, if any, in that order. The packing group is displayed in Roman numerals and may be preceded by "PG.”
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