Questions and Answers
Which one of these choices is not one of the three lists used to find out if a material is regulated as hazardous?
Drivers of placarded vehicles transporting hazardous materials must stop ____ to ____ feet from the nearest rail of a railroad.
15 to 20
How many identical placards is a vehicle hauling hazardous materials required to display and where?
Four (4), one on the front, one on the back, and one on each side of the vehicle
How many different type placards are there showing DOT specifications?
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At what time is it required for the driver to have an approved gas mask on hand?
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What is the shape and size of a placard?
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It is recommended that when hauling a load of explosives a or b to use the fusees instead of the warning triangles if in an emergency or breakdown situation.
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Whenever your vehicle is placarded, do not drive near open fires unless you
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If you are in an accident involving hazardous materials, you should:
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The hazardous waste manifest should be
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If a materials class is the word 'forbidden', what kinds of materials are you still allowed to haul?
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The driver must also carry on his person at all times a dated certificate signed by the employer. This certificate must also be updated every
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Cylinders containing compressed gases may only be loaded onto a vehicle without a flat floor or platform if the cylinders are:
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What type fire extinguisher is required in the power unit of a placarded vehicle?
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Who is responsible for packaging, labeling, and preparing the hazardous material shipping papers for a common carrier?
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If hazardous material is spilling from your vehicle, do not move your vehicle:
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Animals and human foodstuffs should not be loaded in the same vehicle with?
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The transport index of a radioactive material:
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Class A explosives must not be transported in a combination vehicle if the vehicle includes:
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Which of the following must drivers have in their possession while transporting Class A or B explosives?
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Which of the following is the proper definition of a cargo tank?
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What placard must be used with an inhalation hazard load?
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A safe haven is one place you can leave a vehicle unattended that is hauling explosives. What is the best description of a safe haven?
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Which of the following is one of the three keys to identify which placard to use?
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When is it necessary to ground the trailer?
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You may not park a vehicle carrying hazardous materials within ____ feet of an open fire.
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With most hazardous materials, you may park within 5 feet of the road briefly. If your work requires it. The materials that are the exception and do not allow parking this close to the road are:
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You do not have a hazardous materials endorsement on your commercial driver license. When can you legally haul hazardous materials?
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The basic description of a hazardous material includes the hazard class, the ID number, and the proper shipping name. Which one must appear first on the shipping paper?
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When fueling a placarded vehicle, someone must always be
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A driver that hauls hazardous materials must attend training every:
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An 'A/W' in the first column of the hazardous materials table means:
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How many different hazard classes are there?
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When a substance in the materials table is written in italics it means
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Column 1 (symbols) the 'I' means:
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When hauling explosives 1.1 & 1.3; which placard do you use?
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When a spill occurs of an 'RQ' substance the carrier has within ______ to report the spill.
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Column 1 (symbols) the '+' sign means:
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You have loaded a hazardous material into a cargo tank. What must you do before you move the vehicle?
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A properly prepared uniform hazardous waste manifest:
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One of these shipping paper descriptions for a hazardous material is in the right order. Which one is it?
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A placard is required for a combustible liquid at?
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To find out if a shipment includes a hazardous material, you should:
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When there is a hazardous materials emergency. You should:
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Which signals may be used to warn of a stopped vehicle that contains explosives?
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Column 1 (symbols) the 'D' sign means:
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A hazard class name or ID number may not be used to describe a:
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When hauling hazardous materials, you must stop your vehicle and check any dual tires at least once every ___. Whichever is less.
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If there is an 'RQ' before or after the item description on the shipping paper, it means the:
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Carriers must give each driver who transports Class A or B explosives:
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A railroad crossing is ahead of you and you are hauling hazardous material. When you stop for the crossing, you can stop as far away as ____ feet from the nearest rail.
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Who is responsible for safely transporting a hazardous material shipment without delay and keeping the shipping papers in the right place?
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You find an overheated tire during an enroute inspection. If you are hauling hazardous materials, you must:
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The intent of hazardous materials regulations is to ensure safety, to contain the material, and
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The total transport index of all radioactive material packages in a single vehicle must not exceed ____
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You are going to be hauling hazardous materials over a route you do not know well. When should you check the route and get the permits needed for the trip?
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Which three hazard classes should not be loaded into a trailer that has a heater/air conditioner unit?
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What is the only exception to certification by a shipper?
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A truck carrying explosives has crashed with another vehicle. You should not pull them apart until.
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When handling packages of explosives, you must:
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Which of the following choices is a hazard class you are not allowed to smoke around?
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Who is responsible for finding out what permits or special routes you will need to haul hazardous materials?
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If an 'X' or 'RQ' is in the 'HM' column of a shipping paper entry, the:
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Which of the following, if required, must the shipper put on the package?
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You are hauling hazardous materials and you find that one of your tires is leaking. You must:
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Shipping papers must always be kept in one place when driving with hazardous materials. Where when wearing your seat belt?
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A vehicle contains 500 pounds each of explosives A and B, you must use:
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Who is responsible for checking to be sure the shipper correctly named, labeled, and marked a hazardous materials shipment?
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The shipper's package hazardous materials, they must certify that this was done according to the regulations. The only exception is when:
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The name and EPA registration numbers of the shippers, carriers and destination must appear on
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What are placards?
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When carrying class 1.1, 1.2, or 1.3 explosives, you must
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The hazardous materials regulations are intended to do what?
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When transporting hazardous materials, which of the following is NOT a responsibility of the driver?
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When transporting hazardous materials, what are the responsibilities of the driver?
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Which of the following indicates the order in which information must be shown in the description area of a shipping paper?
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Diamond shaped warning labels must be placed on hazardous materials packages. If the package can't accommodate a label?
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Where should placards be displayed if you are required to use them?
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If a 'W' appears in column 1 of the Hazardous Materials Table, what does it indicate about the hazardous material?
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How is the Hazardous Materials Table ordered?
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Where must the identification number of a hazardous material appear?
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What is the shipper's certification?
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You are asked to transport a package that is properly marked and has a signed shipper's certification, but you notice the package is leaking. You should
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When approaching a railroad crossing at which you are required to stop, where should you stop?
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You must stop at a railroad crossing if your vehicle
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To decide which placards to use, you need to know the hazard class, the amount shipped and
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If you have someone attending a placarded vehicle that is parked, that person should
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When transporting materials from placard Table 1 (explosives, poisonous gases etc.), which rule applies?
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When you are transporting hazardous materials, the following smoking regulations apply:
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If you are transporting Class 1.1, 1.2, or 1.3 explosives, you must have a placard if they exceed
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What placards, if any, do you need if your load includes 20 pounds of Division 2.3 gas and 1,001 pounds of flammable gas?
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Class 1
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Class 2
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Class 3
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Class 4
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Class 5
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Class 6
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Class 7
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Class 8
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Class 9
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Study Notes
General HazMat Regulations
- Three primary lists exist to classify hazardous materials: DOT Hazardous Materials Table, EPA list, and IATA Dangerous Goods list.
- Drivers of placarded vehicles must stop 15 to 20 feet from railroad tracks when transporting hazardous materials.
- Vehicles must display four identical placards: front, back, and both sides.
Placards and Signage
- DOT specifications have 31 different types of placards.
- Placards must be 10 3/4 inches square or in a diamond shape.
- For inhalation hazards, the "poison" placard must be used.
- Combine explosive classes (like 1.1 and 1.3) require specific placarding based on the materials being transported.
Safety Equipment and Operations
- Approved gas masks are required for any vehicle carrying chlorine.
- A U.L. rating of 10 B/C or above fire extinguisher is mandatory in the power unit of a placarded vehicle.
- When fueling a placarded vehicle, one person must be at the nozzle to control the fuel flow.
Emergency Protocols
- In the event of an accident involving hazardous materials, evacuation and keeping people far away and upwind is essential.
- Reflective triangles are appropriate signals for warning of a stopped vehicle with explosives.
- If there is a spill of an "RQ" substance, it must be reported within 15 days.
Shipping Papers and Documentation
- Shipping papers must list: identification number, proper shipping name, hazard class, and packing group in that order.
- The proper shipping name must appear first on shipping papers for hazardous materials.
- A dated certificate from the employer must be carried by the driver and updated every two years.
- Hazardous waste manifests need to be tabbed differently and kept on top of the paperwork.
Packaging and Loading Guidelines
- Cylinders containing compressed gases require specific loading conditions to prevent turning over.
- Explosives should not share trailers with heaters or air conditioning units due to safety hazards.
- If a package is leaking, a driver must refuse the shipment even if it has a signed certificate.
Hazard Classifications
- There are nine hazard classes, including explosives, flammable liquids, gases, oxidizers, toxic substances, radioactive materials, corrosives, and miscellaneous hazardous materials.
- Class 1 refers to explosives, while Class 2 is for gases, including flammable gases.
- Class 3 is designated for flammable and combustible liquids, while Class 4 encompasses flammable solids.
Driver Responsibilities
- Drivers must undergo training every two years to remain compliant with hazardous materials regulations.
- The driver is responsible for the safe transport of materials, checking that shippers have correctly labeled hazardous material shipments.
- Smoking regulations prohibit smoking near transporting hazardous materials; specific distances vary by class.
Special Considerations
- No vehicle transporting hazardous materials can stop within 300 feet of an open fire.
- Class A and B explosives cannot be transported in combination vehicles with placarded cargo tanks.
- A vehicle with placarded materials must be grounded when filling or unloading flammable liquids.
Transportation Permits and Routes
- The driver is responsible for understanding and acquiring necessary permits for transporting hazardous materials along specified routes.
- Unsafe conditions, such as overheated tires, must be addressed immediately, including the safe removal of the tire from the vicinity of the vehicle.
Packaging and Labeling
- Proper packaging and labeling of hazardous materials are crucial; shippers must ensure compliance, with exceptions only when shipping their products.
Miscellaneous Guidelines
- A vehicle carrying explosives must not be moved more than necessary if there is a spill.
- Two or more hazardous materials with conflicting requirements cannot be transported together.
- Drivers must keep shipping papers accessible while driving, especially when wearing a seatbelt.
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Test your knowledge with these flashcards on hazardous materials regulations. These flashcards cover critical information for drivers, shippers, and carriers regarding the handling of hazardous materials. Prepare effectively for your HazMat endorsement exam!