Nebraska CDL: Hazardous Materials Practice Test

Not quite. The answer is flammable materials.

You should not risk smoking in close proximity to any class of hazardous material. However, there are specific rules for the following classes: No smoking within 25 feet of classes 3 and 2.1 (flammable materials and gases). No smoking or holding a lighted smoking object such as a cigar or pipe within 25 feet of classes 1, 3, 4, or 4.2 (explosives, flammable liquids or solids, or spontaneously combustible materials).

Not quite. The answer is 2 years.

Your carrier must keep a copy of the Hazardous Materials Incident Report for two years. Normally, it must be kept at the carrier's primary place of business. If it is not kept at the carrier’s primary place of business, then it must be made available within 24 hours of a request by the Department of Transportation (DOT). (Note: This topic is not usually found in the official state CDL handbook.)

Not quite. The answer is Both of the above

A material’s hazard class reflects the risks associated with it. There are nine hazard classes. Class 6 includes poisonous materials (6.1) and infectious substances (6.2).

Not quite. The answer is indicates the degree of control needed during transportation.

A package of radioactive materials is not fully radiation proof. Some radiation can pass right through 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. With this information, the package can be kept safely far enough away from other packages, photographic film, live animals, or people (including yourself).

Not quite. The answer is If you're driving a placarded vehicle or a bus transporting passengers

According to federal regulations, you must stop between 15 and 50 feet of every railroad crossing if any of the following is true: (1) You're driving a bus that is carrying passengers. (2) Your vehicle is placarded for transporting hazardous materials. (3) Your vehicle has cargo tanks for hazardous materials (whether loaded or empty). (4) You're carrying any amount of chlorine.

Source: 49 CFR 392.10

Not quite. The answer is The identification number

The hazardous material identification number is a four-digit code used by first responders to identify the material, should an accident occur. The identification number must appear first on the shipping paper as part of the shipping description.

Source: 49 CFR § 172.202

Not quite. The answer is eight

The Hazardous Materials Table lists every type of material (over 3,000 so far) that the US Department of Transportation has designated as a hazardous material for the purpose of transportation. This table is a reference for shippers and carriers. There are eight columns in the Hazardous Materials Table that deal with road transportation, describing the name of the material, its hazard class, its identification number, and so on. Consult the Nebraska Commercial Driver License Manual for details.

Not quite. The answer is the shipper.

The shipper packs the hazardous materials for transport. The shipper must determine the correct identification number and record it on the packages and the shipping papers. (In the event of an accident, first responders are trained to look first at the packages and the shipping papers for the identification number.)

Not quite. The answer is Any of the above

Under federal regulation 49 CFR 171.16, you must submit a Hazardous Materials Incident Report if an unintentional release of hazardous materials occurs. You must also submit a Hazardous Materials Incident Report if any of the following incidents occurs, even if hazmat is not released: (1) a reportable incident (death, injury, evacuation, etc.) occurs; (2) the lading retention system of a cargo tank containing hazmat is damaged; (3) undeclared hazmat is discovered; or (4) a fire, violent rupture, explosion, or dangerous evolution of heat occurs that might damage the packaging of the hazmat. Note: The "lading retention system" of a cargo tank consists of those items or pieces of equipment that provide containment of the hazmat.

Not quite. The answer is 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 Turn it off before unhooking the hoses.

Keeping your engine on while you pump a load of compressed gas adds extra risk. As soon as the delivery is completed, turn off the engine before you unhook any hoses.

Not quite. The answer is to communicate the risk posed by the hazardous materials.

Placards are signs posted on the outside of the vehicle to warn others that the vehicle is carrying hazardous materials. These signs identify the hazard class of the cargo.

Not quite. The answer is classes 1, 3, 4, or 5.

You should not risk smoking in close proximity to any class of hazardous material. However, there are specific rules for the following classes: No smoking or holding a lighted smoking object such as a cigar or pipe within 25 feet of classes 1, 3, 4.1, 4.2, or 5 (explosives, oxidizers, flammable liquids or solids, or spontaneously combustible materials).

Not quite. The answer is leave the doors closed.

If the cargo doors are hot, it's more likely that there's a fire inside. Opening the cargo doors will let more oxygen into the cargo area and feed the fire. Keeping the doors closed will deprive the fire of additional oxygen. Without additional oxygen, the fire may just smolder until firefighters can arrive.

Not quite. The answer is Division 1.1, 1.2, or 1.3

If you are carrying Division 1.1, 1.2, or 1.3 materials (explosives), you must not park within five feet of the traveled roadway. If you can't get that far away, call emergency services.

Not quite. The answer is It provides technical information about the physical properties of hazardous materials.

The Chemical Transportation Emergency Center (CHEMTREC) offers technical assistance in the event of an incident involving hazardous materials. CHEMTREC has a 24-hour toll-free phone number that you can call. CHEMTREC was created to provide emergency personnel with technical information about the physical properties of hazardous materials. The National Response Center and CHEMTREC are in close communication. If you call either one, they will tell the other about the problem when appropriate.

Not quite. The answer is 10 B:C

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 between 15 and 50 feet from

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 so, proceed only when you are sure that no train is approaching and you can clear the tracks without stopping. Do not shift gears while crossing the tracks.

Not quite. The answer is MC-331

MC-331 cargo tanks carry gases that are liquefied under relatively high pressure (maximum allowable pressure of 100–500 psi). The cargo tank has a circular cross section and rounded ends. These tanks are commonly used to carry such gases as propane and liquefied petroleum gas (LPG).

Not quite. The answer is None of the above

Under federal regulations, you must not drive a placarded vehicle carrying non-radioactive hazardous materials through or near heavily populated areas, places where crowds are assembled, tunnels, narrow streets, or alleys, except if the carrier determines that (1) there is no practicable alternative; (2) a reasonable deviation is necessary to reach terminals, points of loading and unloading, facilities for food, fuel, repairs, rest, or a safe haven; or (3) a reasonable deviation is required by emergency conditions, such as a detour that has been established by a highway authority, or where a law enforcement official requires you to take an alternative route. Note: States and localities often place additional restrictions on allowed routes for various classes of hazardous materials. Check the laws and regulations of the places where you'll be driving.

Source: 49 CFR 397.67