Alabama CDL: Hazardous Materials Practice Test

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 4 psi.

One of the most common types of cargo tanks is the DOT-406, typically used for fuel delivery. A semi-truck with a DOT-406 mounted to the semitrailer is commonly called a "gasoline truck." DOT-406 tanks have a low maximum allowable working pressure (MAWP) of 4 psi.

Not quite. The answer is how to package, load, transport, and unload hazardous materials safely.

Containment rules cover the entire process of transporting hazardous materials safely, from how to package them safely to how to unload them safely at the end of the trip.

Not quite. The answer is communicate the risk.

The hazardous materials regulations are designed to help ensure the safety of shippers, carriers, drivers, and the general public. One way they do this is by requiring that packages of hazardous materials and the vehicles that transport them be clearly marked and accompanied by appropriate shipping papers. This lets emergency personnel and the public know the risks involved.

Not quite. The answer is the carrier must report a significant spill of this material.

There are a few ways to highlight a hazardous material on the shipping papers. One way is to enter "RQ" (reportable quantity) in the HM column. Any spill of a hazardous material that is at least equal to the reportable quantity for such a material must be reported to the National Response Center.

Not quite. The answer is the entry is for a hazardous material.

There are a few ways to highlight a hazardous material on the shipping papers. One way is to enter "X" in the shipping paper's HM column.

Not quite. The answer is must be signed by each carrier transporting the shipment.

A hazardous waste manifest acts as a record of everyone who has been involved in its shipment. Each copy must have all needed signatures and dates, including those of the person to whom you delivered the waste.

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 diamond shaped.

Shippers put diamond-shaped hazard warning labels on most hazardous materials packages. These labels inform others of the hazard. If the diamond label won't fit on the package, shippers may put the label on a tag securely attached to the package.

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 All of the above

The Hazardous Materials Regulations accomplish several things. They help ensure safe drivers and equipment. They communicate the risk of hazardous materials through the use of appropriate labels, placards, and shipping papers. Also, the regulations tell shippers how to package the materials safely, and they tell drivers how to load, transport, and unload the materials. These rules are called "containment rules."

Not quite. The answer is Any of the above

Federal regulation 49 CFR 392.10 states that CMVs transporting any of the following must stop at all railroad crossings: (1) Most hazardous materials that require placarding (see the regulation for details). (2) Any amount of chlorine. (3) A cargo tank that is used to carry hazmat, even if it is currently empty. (4) A cargo tank containing a substance whose temperature at the time of loading was already above its flashpoint.

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 section 9.4 of the Alabama 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 Close all manholes and valves. Be sure they are free of leaks.

Before you start to drive a vehicle with a cargo tank containing hazardous materials, make sure that the manholes and valves are closed and leak-free. It is illegal to move a cargo tank containing any amount of hazardous materials for any distance if any valves or covers are open.

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 Alabama Commercial Driver License Manual for details.

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 both the hazard class placard and the POISON INHALATION HAZARD or POISON GAS placards.

If the words INHALATION HAZARD appear on the shipping paper or package, the rules require display of the POISON INHALATION HAZARD or POISON GAS placards, as appropriate. These placards must be used in addition to other placards, which may be required by the product's hazard class. Always display the hazard class placard and the POISON INHALATION HAZARD placard, even for small amounts.

Not quite. The answer is List of Hazardous Substances and Reportable Quantities.

There are three lists used to identify hazardous materials, all created by the US Department of Transportation: (1) the Hazardous Materials Table (49 CFR 172.101); (2) Appendix A to that section, known as the List of Hazardous Substances and Reportable Quantities; and (3) Appendix B to that section, known as the List of Marine Pollutants. Before transporting a hazardous material, you should check all three lists because some materials will be found on more than one list.

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

Not quite. The answer is on all bulk packaging and on the cargo tanks.

In addition to the two main locations for the hazardous material identification number, you must also display it on the cargo tanks and on all bulk packaging.