Oklahoma CDL: Hazardous Materials Practice Test

Not quite. The answer is clear view within your reach.

Your shipping papers for hazardous materials must be visible and accessible to emergency personnel at all times, even when you're out of your vehicle. When you're inside your vehicle, keep the shipping papers in a pouch on the driver's side door or somewhere else where they can be in clear view and within immediate reach. Whenever you need to leave your vehicle, leave the shipping papers in that pouch or on the driver's seat.

Not quite. The answer is warn others of the fire hazard.

Class 4 materials (Flammable Solids) can react with heat, water, or air, and start fires. Class 5 materials (Oxidizers) can react with many other substances and also start fires. If any of these materials are spilled, warn others of the fire hazard. Do not open smoldering packages of flammable solids. Remove them from the vehicle if you can safely do so. Also, remove unbroken packages if it will decrease the fire hazard.

Not quite. The answer is display POISON placards in addition to any other required placards.

If the words "INHALATION HAZARD" appear on the shipping paper or package, your vehicle must display the POISON INHALATION HAZARD or POISON GAS placards, as appropriate. These placards must be used in addition to any other placards that may be required by the material's hazard class or division.

Not quite. The answer is never use hooks or other metal tools.

Explosives should never be exposed to electric sparks. Metal tools can generate or conduct electric sparks. Use nonmetallic tools.

Not quite. The answer is Because while being transported, they pose a risk to health, property, or safety

The government regulates the transportation of hazardous materials because by definition, they are potentially dangerous to health, property, public safety, or the environment. Examples include explosives, flammable liquids and gases, poisons, and radioactive materials.

Not quite. The answer is you have placed the explosives at least 200 feet away from the vehicles and occupied buildings.

If your vehicle is carrying explosives and collides with another vehicle, warn others of the danger. Keep bystanders away. Do not allow smoking or open fire near the vehicle. If there is a fire, warn everyone of the danger of explosion. Remove all the explosives before separating the two vehicles. (Good luck!) Place the explosives at least 200 feet from the vehicles and any occupied buildings.

Not quite. The answer is Radioactive Materials

A material’s hazard class reflects the risks associated with it. There are nine hazard classes. Class 7 materials are radioactive materials. These include radioactive metals, ionization smoke detectors that contain the isotope Americium 241, medical and scientific isotopes, and spent nuclear fuel.

Not quite. The answer is inform someone and do not load the battery acid.

Silver cyanide and battery acid are on the list of materials that cannot travel together for safety reasons. (See the Do Not Load Table in the Oklahoma Commercial Driver License Manual.) Silver cyanide is a Division 6.1 material (poison). It cannot be loaded with acids because their mixture can release hydrocyanic acid, which is extremely poisonous.

Not quite. The answer is 10

All placarded vehicles are required to have a fire extinguisher with a minimum UL rating of 10 B:C. That is, it must be able to extinguish a 10-square-foot class B fire (which includes almost all flammable liquids) and be electrically non-conductive (hence its C rating).

Not quite. The answer is Division 6.1

Never transport Division 2.3 materials (poisonous gases) or Division 6.1 materials (poisonous materials) in containers with interconnections. Also, never load any package containing poisons in the driver's cab or sleeper or together with foods for human or animal consumption.

Not quite. The answer is bulk packaging permanently attached to your vehicle.

Cargo tanks are tanks that are permanently attached to a commercial vehicle. There are many different styles for transporting a variety of different materials.

Not quite. The answer is PHMSA

If you must complete a Hazardous Materials Incident Report, you must submit it to the Pipeline and Hazardous Materials Safety Administration (PHMSA). It can be submitted by mail or electronically at the PHMSA website. At that website, search for "Incident Reporting". (Note: This topic is not usually found in the official state CDL handbook.)

Not quite. The answer is 50.

Some radiation can pass out of the package, possibly contaminating its immediate environment. The transport index of a package of radioactive material describes the highest level of radiation (in millirems per hour) that is expected at a distance of one meter (about 39.37 inches) from the surface of the package. A transport index that is no higher than 50 is believed to pose negligible risk.

Not quite. The answer is C) the manufacturing date of the material.

You do not need to know when a product was manufactured or expires unless your company has an additional responsibility. You do need to know the amount of the hazardous material being shipped, its hazard class, and the total amount of all the hazardous materials of all classes that will be carried on your commercial vehicle during your trip.

Not quite. The answer is Yes.

If your vehicle is placarded, you must stop between 15 and 50 feet from the nearest rail at a railroad crossing. After you have done this, proceed once you are sure that no train is approaching, and do not shift while you are on the tracks.

Not quite. The answer is look at the shipping papers.

If you need to know whether a shipment contains hazardous materials, just check the shipping papers, which should have hazardous materials clearly marked. (In the event of an accident, first responders will also check the shipping papers to find out what materials they're dealing with.)

Not quite. The answer is a copy of FMCSR Part 397.

Each carrier must give drivers who transport explosives a copy of 49 CFR 397, "Transportation of Hazardous Materials; Driving and Parking Rules." It contains regulations regarding the routing of hazardous materials, including considerations when choosing a suitable route.

Not quite. The answer is the shipment is regulated by hazardous materials regulations.

On a shipping paper that lists both hazardous and nonhazardous materials, the hazardous materials must stand out for the reader. There are three ways to do this: List the hazardous materials first; highlight them in a contrasting color; or place an "X" or an "RQ" before their names. ("RQ" means that the hazardous material is being shipped in a reportable quantity.)

Not quite. The answer is any of the above

Obviously, if there is a spill of a Class 3 material (flammable liquid) or a Class 4 material (flammable solid), you should take precautions against a fire hazard. But Class 5 materials (oxidizers) can react with some flammable substances in the area and also cause a fire. Finally, many Class 6 materials (poisons) are also flammable. Hence, it's wise to take fire precautions when dealing with Class 5 or Class 6 materials too. (Note: This topic is not usually found in the official state CDL handbook.)

Not quite. The answer is diamond-shaped

The shipper must affix appropriate US DOT-compliant HazMat labels to the packages and supply the driver with the appropriate placards to attach to the vehicle. Both the labels and the placards are diamond shaped. [49 CFR 172.400],

Source: 49 CFR 172.407