Free Hazardous Materials (H) CDL practice questions

Sample questions from this test

1. You need a hazardous materials endorsement to drive which vehicles hauling hazmat as defined in 49 CFR 383.5?
   1. Only Class A vehicles
   2. Only vehicles over 26,001 lb
   3. Any size vehicle
   4. Only tank vehicles
   Show answer

   Any size vehicle

   The H endorsement is needed for any size vehicle used to transport hazardous material.

2. Before transport, the carrier must:
   1. Repackage all hazmat
   2. Check that the shipper prepared the shipment correctly and refuse improper shipments
   3. Sign the shipper's certification
   4. Remove all labels
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   Check that the shipper prepared the shipment correctly and refuse improper shipments

   The carrier checks the shipper's work and refuses improper shipments.

3. Sodium, which reacts with water, is in Division:
   1. 4.3 Dangerous when wet
   2. 4.1 Flammable solid
   3. 4.2 Spontaneously combustible
   4. 5.1 Oxidizer
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   4.3 Dangerous when wet

   Sodium is the example for 4.3 dangerous when wet.

4. While you are driving, hazmat shipping papers must be:
   1. In the sleeper berth
   2. In a locked box in the trailer
   3. In the glove compartment
   4. In the driver's door pouch, or visible and reachable while you are buckled in
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   In the driver's door pouch, or visible and reachable while you are buckled in

   Keep them in the driver's door pouch or in clear view within immediate reach while belted.

5. How long must a shipper keep a copy of a hazmat shipping paper (not hazardous waste)?
   1. 2 years
   2. 90 days
   3. 1 year
   4. 5 years
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   2 years

   Shippers keep shipping papers 2 years (3 years for hazardous waste).

6. When may you move a vehicle that is not properly placarded?
   1. When the trip is under 5 miles
   2. Only in an emergency, to protect life or property
   3. At night
   4. When the consignee is waiting
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   Only in an emergency, to protect life or property

   An improperly placarded vehicle may only be moved in an emergency to protect life or property.

7. You loaded 2,500 lb of Class 8 corrosives at one stop plus 1,200 lb of Class 3 elsewhere. For the corrosives you must use:
   1. The CORROSIVE placard
   2. Only a DANGEROUS placard
   3. No placard
   4. A Class 9 placard
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   The CORROSIVE placard

   If 2,205 lb or more of one Table 2 class is loaded at one place, use its specific placard.

8. One identification number can be used for more than one chemical.
   1. True
   2. False
   Show answer

   True

   True. An ID number may identify more than one chemical.

9. When a hazardous substance is shipped in its reportable quantity or more in one package, the shipper shows:
   1. The word WASTE
   2. “RQ” on both the paper and the package
   3. A DANGEROUS placard
   4. Orange panels
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   “RQ” on both the paper and the package

   RQ is displayed on the shipping paper and the package.

10. Is stainless steel an acceptable floor liner for Division 1.1 or 1.2 explosives?
    1. Yes, it does not rust
    2. No, it must be non-metallic or non-ferrous metal
    3. Yes, any metal is fine
    4. No liner is needed
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    No, it must be non-metallic or non-ferrous metal

    Stainless steel contains iron; the liner must be non-metallic or non-ferrous.

11. A radioactive package with a transport index of 1.1 cannot be left within ___ of people or cargo space walls.
    1. 2 feet
    2. 6 inches
    3. 10 feet
    4. 25 feet
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    2 feet

    Per the separation table, a TI of 1.1 needs at least 2 feet from people and cargo walls.

12. A portable tank that holds 1,000 gallons or more must show the ID number on:
    1. The front only
    2. Two opposing sides
    3. Each side and each end
    4. The top
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    Each side and each end

    1,000 gallons or more: each side and each end; less: two opposing sides.

13. With 1.1–1.3 explosives, you may let someone else watch your parked vehicle only when it is:
    1. At a public rest area
    2. On the shipper's, carrier's or consignee's property
    3. On a city street
    4. At a fuel station
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    On the shipper's, carrier's or consignee's property

    Someone else may watch it only on shipper, carrier or consignee property.

14. Your placarded trailer has dual tires. When must you check them?
    1. At the start of each trip and each time you park
    2. Once a week
    3. Every 500 miles
    4. Only at inspections
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    At the start of each trip and each time you park

    Check every tire when the trip starts and whenever you park.

15. When may a driver use the fire extinguisher at a hazmat incident?
    1. To fight any cargo fire
    2. To put out a fire inside a burning tank
    3. Never
    4. To keep a minor truck fire from spreading to the cargo before firefighters arrive
    Show answer

    To keep a minor truck fire from spreading to the cargo before firefighters arrive

    Use the extinguisher on minor truck fires to keep them from reaching the cargo; do not fight hazmat fires without training.