Commercial Driver License Class A Hazmat Test
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Questions and Answers

Whenever your vehicle is placarded, do not drive near open fire unless you:

  • You are trained to handle hazardous materials
  • You are in a designated safety zone
  • It is dark outside
  • Can safely pass without stopping (correct)
  • Which signals may be used to warn of a stopped vehicle which contains explosives?

    Reflective triangles

    A hazard class name or ID number may not be used to describe:

    Non-hazardous materials

    A vehicle placarded for hazardous materials must have placards on ___ sides.

    <p>4</p> Signup and view all the answers

    What is the third intent of the Hazardous Materials regulation?

    <p>To contain the materials</p> Signup and view all the answers

    One of the lists that drivers, shippers, and carriers use to find out if a material is regulated is the:

    <p>List of Hazardous Materials and Reportable Quantities</p> Signup and view all the answers

    If an X or RQ is in the HM column of a shipper paper entry, the:

    <p>Shipment is regulated by Hazardous Materials</p> Signup and view all the answers

    Only one of these shipping papers description for a hazardous material is in the right order. Which one is it?

    <p>Hydrogen Bromide, Non-flammable gas.UN 1048</p> Signup and view all the answers

    What should you do if a vehicle carrying explosives has crashed with another vehicle?

    <p>The explosives have been placed at least 200 feet away from the vehicles and occupied buildings</p> Signup and view all the answers

    You may not park a vehicle carrying hazardous materials within ____ feet of an open fire.

    <p>300</p> Signup and view all the answers

    The transport index of a radioactive material:

    <p>Tells the degree of control needed during transportation</p> Signup and view all the answers

    When hauling hazardous materials, you must stop your vehicle and check any dual tires at least once every ________, whichever is less.

    <p>2 hours or 100 miles</p> Signup and view all the answers

    What should you do if the hazard class of a two-liter bottle of material is 'FLAMMABLE LIQUID'?

    <p>Placard the vehicle both with POISON and hazard class placards</p> Signup and view all the answers

    When should you check the route and the permits needed for the trip when hauling hazardous materials?

    <p>Before starting the trip</p> Signup and view all the answers

    What must carriers give each driver who transports Class 1.1 or 1.2 explosives?

    <p>A copy of FMCSR (Federal Motor Carrier Safety Regulation) part 397</p> Signup and view all the answers

    If you find that one of your tires is leaking while hauling hazardous materials, what must you do?

    <p>Stop at the nearest safe place and fix it</p> Signup and view all the answers

    When shippers package hazardous materials, they must certify that this was done according to regulations. What is the exception?

    <p>The shipper is a private carrier carrying their own product</p> Signup and view all the answers

    When fueling a placarded vehicle, someone must always be:

    <p>At the nozzle, controlling the fuel flow</p> Signup and view all the answers

    The total transport index of all radioactive materials packages in a single vehicle must not exceed _____.

    <p>50</p> Signup and view all the answers

    What must you do before moving a vehicle that has loaded hazardous material into a cargo tank?

    <p>Close all manholes and valves and be sure they are free of leaks</p> Signup and view all the answers

    If the word FORBIDDEN appears in the hazard class column of an entry in the hazardous materials table, what does it mean?

    <p>A common carrier must never transport the material</p> Signup and view all the answers

    Your vehicle contains explosives, oxidizer or flammables. No one may smoke within _____ feet of the vehicle.

    <p>25</p> Signup and view all the answers

    When handling packages of explosives, you must:

    <p>Never use hooks or other metal tools</p> Signup and view all the answers

    Who is responsible for safely transporting a hazardous material shipment without delay and keeping the shipping papers in the right place?

    <p>The driver</p> Signup and view all the answers

    When stopping for a railroad crossing while hauling hazardous materials, you can stop as far away as _____ feet from the nearest rail.

    <p>50</p> Signup and view all the answers

    What must appear first on the shipping paper for hazardous materials?

    <p>The proper shipping name</p> Signup and view all the answers

    Class 1.1 explosives must not be transported in a combination vehicle if it includes:

    <p>A placarded cargo tank</p> Signup and view all the answers

    Study Notes

    Vehicle Operations and Safety

    • Do not drive a placarded vehicle near open fire unless it can safely pass.
    • Keep reflective triangles ready to warn of stopped vehicles carrying explosives.
    • Ensure a vehicle placarded for hazardous materials has placards on all four sides.

    Hazardous Materials Regulations

    • Hazard class names or ID numbers should not be used for non-hazardous materials.
    • The purpose of Hazardous Materials regulations includes ensuring driver and equipment safety, communicating risks, and containing materials.
    • Use the List of Hazardous Materials and Reportable Quantities to identify regulated products.

    Shipping and Documentation

    • An "X" or "RQ" in the HM column of shipper papers indicates regulation by Hazardous Materials.
    • Correct order for shipping papers: Hazardous Material name, UN number, and any relevant classifications.
    • Carriers must provide drivers transporting Class 1.1 or 1.2 explosives with a copy of FMCSR part 397.

    Emergency Procedures

    • In case of a crash involving explosives, do not move vehicles until explosives are safely distanced by 200 feet.
    • If carrying hazardous materials, cannot park within 300 feet of an open fire, and no smoking within 25 feet of the vehicle.

    Maintenance and Inspections

    • Check dual tires at least once every 2 hours or 100 miles during hazardous material transport.
    • Fix any leaking tires by stopping at the nearest safe location.
    • Ensure all manholes and valves are closed and free of leaks before moving a vehicle loaded with hazardous material.

    Special Handling and Precautions

    • For materials labeled as POISON INHALATION HAZARD, use both POISON and hazard placards.
    • Do not use metal tools or hooks when handling packages of explosives.
    • A common carrier cannot transport materials marked FORBIDDEN in the hazard class column.

    Radioactive Materials

    • The transport index indicates the level of control needed; total transport index must not exceed 50 across all radioactive packages in a single vehicle.

    Route and Permit Management

    • Check routes and necessary permits before commencing trips hauling hazardous materials.

    Responsibilities and Regulations

    • The driver is responsible for the safe and timely transport of hazardous material shipments and must keep shipping papers accessible.
    • During refueling of a placarded vehicle, someone must control fuel flow at the nozzle.
    • Stop at least 50 feet away from railroad crossings when transporting hazardous materials.

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    Test your knowledge with flashcards designed for the Commercial Driver License (Class A) Hazmat Endorsement. This quiz covers critical information regarding the handling and transportation of hazardous materials. Ensure you are prepared for the test by reviewing these essential concepts.

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