Michigan CDL: Hazardous Materials Practice Test

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 must be electrically non-conductive (hence its C rating).

Not quite. The answer is MC-306 (DOT-406)

MC-306 (DOT-406) cargo tanks carry liquids under very low or no pressure (maximum allowable pressure of 3 psi for MC-306 and 4 psi for DOT-406). The cargo tank has an oval or elliptical cross section and is usually compartmented. These tanks are commonly used to carry gasoline, diesel fuel or fuel oil, and other flammable liquids.

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.

Not quite. The answer is No. The regulations may change.

The official state CDL manual contains all the information you need to know to pass the HazMat endorsement knowledge test. However, times change. Government and industry regulations for dealing with hazardous materials can change over time. Even after you obtain your HazMat endorsement, you'll need to keep up with those changes. (For example, in 2001, the PATRIOT Act became law, requiring HazMat drivers to be fingerprinted and undergo an extensive criminal background check.) Government regulations require training of all drivers involved in transporting hazardous materials. Your employer or a designated representative is required to provide you this training. You can also obtain and study a copy of Title 49 (transportation) of the Code of Federal Regulations (CFR). Also study your state's regulations.

Not quite. The answer is Do both of the above.

If there is an emergency involving the hazardous materials that you're transporting, follow all instructions that your employer gave you. Keep bystanders away, preferably upwind, while warning them of the danger. Try to keep open flames away and don't let anyone smoke near the hazardous materials. Take a copy of your shipping papers with you to provide to first responders who arrive at the scene.

Not quite. The answer is explosives C, flammable solids, or oxidizers.

Corrosive liquids can give off dangerous hydrogen gas if they come into contact with metal containers. Some corrosive liquids are themselves flammable. Don't load corrosive liquids next to or above anything that can cause or worsen a fire or explosion. Section 9.4 contains a complete list of hazardous materials that you should NOT load together with corrosive liquids.

Not quite. The answer is To communicate risk

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

Not quite. The answer is emergency response information.

The shipping papers must describe the hazardous materials (including the hazardous material identification numbers) and provide information on what to do and whom to contact in case of an emergency.

Not quite. The answer is 20 feet long.

An ISO standard portable tank is a metal tank enclosed in a steel frame. The frame is 19.8556 feet (6.05 meters) long, 7.874 feet (2.40 meters) wide, and either 7.874 feet (2.40 meters) high or 8.374 feet (2.55 meters) high.

Not quite. The answer is Any of the above

Most official state CDL handbooks still state that to oversee the loading or unloading of hazmat into a cargo tank, a qualified person must be within 25 feet of the cargo tank, with a clear view of the cargo tank. However, this is no longer the only way. Federal regulation 49 CFR 177.834 now allows two methods by which the qualified person can "attend" the loading or unloading remotely: (1) via a video monitoring system, as long as the cameras provide an unobstructed view of all equipment involved in the loading or unloading process; (2) via an instrumentation and signaling system, as long as the system provides a surveillance capability that is as good as that of a human observer. When a qualified person is "attending" remotely, there must be a way for the person to control the shut-off valves remotely in the event of an incident. There must also be a way for the person to terminate the loading or unloading immediately in the event of a loss of monitoring capability. Finally, when the loading or unloading has been completed, some qualified person (not necessarily the same one) must inspect the cargo tank in person for any damage that might have been sustained during the loading or unloading process. (Note: This topic is not found in the official state CDL handbook.)

Not quite. The answer is contain the hazardous materials.

Among other things, the Hazardous Materials Regulations tell shippers how to package the materials safely and tell drivers how to load, transport, and unload the materials. These rules are called "containment rules."

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 Corrosive

Most batteries in motor vehicles are lead-acid batteries. These contain a solution of sulfuric acid and water. Sulfuric acid is corrosive. Concentrated sulfuric acid can burn the skin.

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 Classes 1, 2.1, and 3

The three hazard classes that must be kept in a trailer without automatic heating and cooling are class 1 (explosives), class 2.1 (flammable gases), and class 3 (flammable liquids), since they are particularly volatile.

Not quite. The answer is 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.

Not quite. The answer is At least 5 feet

If you are carrying Division 1.2 or 1.3 materials, never park your vehicle less than 5 feet away from the traveled portion of a road or highway. If you cannot get that far away, it is considered a serious emergency and you should call emergency services.

Not quite. The answer is keep all people far away and upwind of the accident.

If you have an accident while carrying hazardous materials, you must follow your employer's instructions. However, keep bystanders well away and upwind of the accident for their own safety.

Not quite. The answer is On the shipping papers and on the packages

The two main places where you must keep the hazardous material identification numbers are on your shipping papers and on the packages, since these are the places that emergency personnel have been trained to check immediately.

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.