Iowa CDL: Hazardous Materials Practice Test

Not quite. The answer is Reflective triangles

Ideally, you should not risk exposing any type of hazardous material to flame, but especially Division 1.1, 1.2, or 1.3 (explosives), Division 2.1 (flammable gases), or Division 3 (flammable liquids). These can be so volatile that they should not be exposed to any heat source, not even a cargo heater. Set out warning triangles as explained in the section "Communicating Your Presence" in the Iowa Commercial Driver License Manual.

Not quite. The answer is by air.

The letter 'A' means the hazardous material described in Column 2 is subject to the Hazardous Materials Regulations only when offered or intended for transportation by air, unless it is a hazardous substance or hazardous waste.

Not quite. The answer is three

Federal, state, and county regulations on the handling of hazardous materials can change at any time, and HazMat workers need to keep up with those changes. Federal regulation 49 CFR 172.704 requires every HazMat employee to be retrained every three years. This includes training in his or her employer's security plan. If the employer changes the security plan, it must train the employee about the changes within 90 days.

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 make it easy to identify.

The regulations for packages of hazardous materials require shippers to make it easy for drivers, destination personnel, and emergency personnel to identify the contents quickly and easily.

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 The shipper

The shipping paper describes the hazardous material and its quantity, among other things. The shipper must fill out the shipping paper because the shipper packages the material. Only the shipper knows exactly what's inside the package. Except in an emergency, no one else should open the package to see what's inside until the package is delivered to the receiver.

Not quite. The answer is All of the above

Non-bulk packaging has specific requirements to be used as a receptacle for solids, liquids, or gases. To qualify as non-bulk, it must satisfy the following: 450 L (119 gallons) or less for liquids, 400 kg (882 pounds) or less and 450 L (119 gallons) or less for solids, and 454 kg (1,000 pounds) or less for gases.

Not quite. The answer is Yes.

If your vehicle is placarded, you must stop 15 to 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 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 3

A material’s hazard class reflects the risks associated with it. There are nine hazard classes. Class 3 hazardous materials include flammable liquids and combustible liquids. Acetone, gasoline, and methanol are examples.

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

You do not need to know when a product was manufactured or has expired 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 four

You placard your vehicle to warn everyone around you that you are transporting hazardous materials. Therefore, you must have placards on all four sides of your vehicle.

Not quite. The answer is A

You may have seen the term "hazard zone" in the Hazardous Materials Table. A poisonous material's "hazard zone" (not to be confused with its "hazard class") is the degree of hazard that it poses, based on how toxic it is. The hazard zone is based on the minimum concentration of the material that will kill 50% of those who are exposed to it. Division 2.3 poisonous gases have four possible hazard zones, A, B, C, and D, in descending order of toxicity. Division 6.1 poisonous liquids have just two possible hazard zones, A and B, also in descending order of toxicity. For either poisonous gases or poisonous liquids, hazard zone A poses the greatest hazard. According to federal regulation 49 CFR 173.116, a poisonous gas in hazard zone A will kill 50% of those exposed to a concentration of just 200 parts per million. Your carrier must apply for a Hazardous Materials Safety Permit (HMSP) to haul poisonous materials in certain safety zones. For example, to haul more than 1 liter or 1.08 quarts of a material that is poisonous by inhalation and is in hazard zone A, your carrier must hold a Hazardous Materials Safety Permit.

Not quite. The answer is Non-ferrous metal

Explosives should not be near anything that could emit sparks. The floor liner for moving Division 1.1 or 1.2 materials must be either nonmetallic materials or non-ferrous metals. Stainless steel and carbon steel are ferrous metals.

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 IA 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 All of the above

Under federal regulations, you must communicate with the carrier at the beginning of your tour of duty, at each pickup, at each delivery, and at the end of your tour of duty.

Source: 49 CFR 385.415

Not quite. The answer is Column 4

Column 4 of the Hazardous Materials Table lists the hazardous material identification numbers. This number must be provided on the shipping papers, the packages, the cargo tanks, and other bulk packaging. In the event of an accident, first responders will use this information to identify the hazardous material and decide what to do.

Not quite. The answer is Both of the above

Federal regulations require the shipper to communicate the risk of the hazardous materials in several ways: put hazard warning labels on packages, and provide proper shipping papers, appropriate placards for the vehicle, and emergency response information.

Not quite. The answer is At least 300 feet

When driving with a load of Division 1.1, 1.2, or 1.3 hazardous materials, which are explosives, you must park at least 300 feet away from any bridge, tunnel, or structure. You must maintain the same distance from any gathering place or open fire.