CDL Practice Tests: Hazardous Materials (hazmat) Endorsement

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Question #432 (1 of 10)

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The power unit of placarded vehicles must have a fire extinguisher with a UL rating of 10:

  • 10 B:C or more
  • 10 A:B or more
  • 10 A:C or more
  • 5 B:C or more

The power unit of placarded vehicles must have a fire extinguisher with a UL rating of 10 B:C or more.

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Question #441 (2 of 10)

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Which of the following is the INCORRECT driver response to a hazardous material crash or incident?

  • Keep people away from the scene
  • Communicate the danger of the hazardous materials to emergency response personnel
  • Provide emergency responders with the shipping papers and emergency response information
  • Remain in the vehicle and keep the engine running

As a professional driver, your job at the scene of a crash or an incident is to:

  • Keep people away from the scene.
  • Limit the spread of material, only if you can safely do so.
  • Communicate the danger of the hazardous materials to emergency response personnel.
  • Provide emergency responders with the shipping papers and emergency response information.
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Question #402 (3 of 10)

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The basic description of hazardous materials must include the following items, but in what order?

  • 1) The identification number, 2) the proper shipping name, 3) hazard class or division and the packing group
  • 1) Hazard class or division and the packing group, 2) the proper shipping name, 3) the identification number
  • 1) The proper shipping name, 2) hazard class or division and the packing group, 3) the identification number
  • 1) The proper shipping name, 2) the identification number, 3) Hazard class or division and the packing group

The basic description of hazardous materials must include the following in this order:

  • The identification number
  • The proper shipping name
  • Hazard class or division and the packing group (if any)
Yes, it's possible they will ask this on the test. It's hard to say. Just remember, "number, name, class"
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Question #411 (4 of 10)

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If the words INHALATION HAZARD are on the shipping paper or package, you must display ______ or _____ placards in addition to any other placards needed by the product's hazard class.

  • Dangerous or poison inhalation
  • Poison inhalation or Corrosive
  • Poison gas or poison inhalation
  • None of these
If the words INHALATION HAZARD are on the shipping paper or package, you must display POISON GAS or POISON INHALATION placards in addition to any other placards needed by the product's hazard class.
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Question #395 (5 of 10)

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Describe the Identification Number of hazardous materials:

  • An identification number may be used to identify more than one chemical.
  • All these are correct
  • The letters “NA” or “UN” will precede the identification number.
  • A four-digit code used by first responders to identify hazardous materials
Identification numbers are a four-digit code used by first responders to identify hazardous materials. An identification number may be used to identify more than one chemical. The letters “NA” or “UN” will precede the identification number.
Important! Remember that placards on the outside of the vehicle will display the Hazard Class while placards or stickers placed on individual product containers (like plastic bulk containers, gas cylinders, or drums) will show the Identification Number of the product. Remember that - Hazard Class on the outside of the vehicle, Identification Number on individual containers.
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Question #399 (6 of 10)

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What must you do if the words INHALATION HAZARD appear on the shipping paper or package?

  • All these are correct
  • Display all additional placards that are required beyond the POISON INHALATION HAZARD or POISON GAS placards
  • You must display the POISON INHALATION HAZARD or POISON GAS placards
  • Always display the hazard class placard and the POISON INHALATION HAZARD placard, even for small amounts.
If the words INHALATION HAZARD appear on the shipping paper or package, the rules require the 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.
I know this is getting pretty technical. That's hazmat for ya! Think about this to help you remember - an "Inhalation Hazard" means it's dangerous to breathe! That's really dangerous stuff! Therefore, the requirements are very strict.
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Question #429 (7 of 10)

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If you break down while carrying Division 1 explosives, Division 2 Flammable Gas, or Class 3 Flamable Liquids you must:

  • None of these are correct
  • Use burning signals such as flares or fuses
  • Contact the federal emergency response team immediately
  • Never use burning signals such as flares or fuses

You might break down and have to use stopped vehicle signals. Use reflective triangles or red electric lights. Never use burning signals, such as flares or fuses, around a:

  • Tank used for Class 3 (flammable liquids) or Division 2.1 (flammable gas) whether loaded or empty.
  • Vehicle loaded with Division 1.1, 1.2 or 1.3 explosives.
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Question #414 (8 of 10)

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The rules usually forbid the use of cargo heaters, including automatic cargo heater/air conditioner units, for certain hazardous materials. Which hazardous materials?

  • Class 3 Flammable Liquid
  • All these
  • Class 2.1 Flammable Gas
  • Class 1 Explosives

Cargo Heater Rules. There are special cargo heater rules for loading:

  • Class 1 (Explosives).
  • Class 2.1 (Flammable Gas).
  • Class 3 (Flammable Liquids).

The rules usually forbid the use of cargo heaters, including automatic cargo heater/air conditioner units. Unless you have read all the related rules, do not load the above products in a cargo space that has a heater.

This one is pretty easy. If it may catch fire or explode, don't use the cargo heater (reefer unit)!
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Question #447 (9 of 10)

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What does the National Response Center do?

  • None of these
  • Coordinates crews involved in the rescue of people from floods, forest fires, or other natural catastrophes
  • Helps coordinate emergency response to chemical hazards
  • Forecasts emergency events based upon statistical probability for weather, wildfires, etc
The National Response Center helps coordinate emergency response to chemical hazards. It is a resource to the police and firefighters. It maintains a 24-hour, toll-free line listed below.
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Question #435 (10 of 10)

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You must stop for all railroad crossings EXCEPT when:

  • Your vehicle carries any amount of chlorine
  • Your vehicle is placarded
  • Your vehicle has cargo tanks, whether loaded or empty, used for hazardous materials
  • Your vehicle carries less than a reportable quantity of hazardous materials

Stop before a railroad crossing if your vehicle:

  • Is placarded.
  • Carries any amount of chlorine.
  • Has cargo tanks, whether loaded or empty, used for hazardous materials.

You must stop 15 to 50 feet before the nearest rail. Proceed only when you are sure no train is coming and you can clear the tracks without stopping. Do not shift gears while crossing the tracks.

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About The Hazardoud Materials CDL Exam

The Hazardoud Materials written CDL Exam is required to obtain your hazardous materials endorsement on your CDL. You must have a Commercial Drivers License (CDL) with a hazardous materials endorsement before you drive any size vehicle that is used to transport hazardous material as defined in 49 CFR 383.5. You must pass a written test about the regulations and requirements to get this endorsement.

  • Bulk Tank Loading, Unloading and Marking
  • Driver Responsibilities
  • Driving and Parking Rules
  • Communications Rules
  • Emergencies
  • Loading and Unloading

Hazardous Materials Transportation - Shipper's Responsibility

The Shipper

  • Sends products from one place to another by truck, rail, vessel or airplane.
  • Provides correct placards.
  • Packages, marks and labels the materials, prepares shipping papers, provides emergency response information and supplies placards.
  • Certifies on the shipping paper that the shipment has been prepared according to the rules (unless you are pulling cargo tanks supplied by you or your employer).

The shipper also uses the hazardous materials regulations to determine the product’s:

  • Proper shipping name.
  • Hazard class.
  • Identification number.
  • Packing group.
  • Correct packaging.
  • Correct label and markings.

Carrier And Driver Responsibility

The Carrier

  • Takes the shipment from the shipper to its destination.
  • Prior to transportation, checks that the shipper correctly described, marked, labeled and otherwise prepared the shipment for transportation.
  • Refuses improper shipments.
  • Reports accidents and incidents involving hazardous materials to the proper government agency.

The Driver

  • Makes sure the shipper has identified, marked and labeled the hazardous materials properly.
  • Refuses leaking packages and shipments.
  • Placards vehicle when loading, if required.
  • Safely transports the shipment without delay.
  • Follows all special rules about transporting hazardous materials.
  • Keeps hazardous materials shipping papers and emergency response information in the proper place.

Drivers must keep hazardous materials shipping papers in one of three ways:

  • In a pouch on the driver's door
  • In clear view within immediate reach while the seat belt is fastened while driving
  • On the driver's seat when out of the vehicle

Placards

Placards are used to warn others of hazardous materials. Placards are signs put on the outside of a vehicle and on bulk packages, which identify the hazard class of the cargo.

A placarded vehicle must have at least four identical placards. They are put on the front, rear, and both sides of the vehicle. Placards must be readable from all four directions. They are at least 10 3/4 inches square, square-on-point, in a diamond shape.

Cargo tanks and other bulk packaging display the identification number of their contents on placards or orange panels or white square-on-point displays that are the same size as placards.

The Shipping Paper

The shipping paper describes a shipment. A shipping paper for hazardous materials must include:

  • Page numbers if the shipping paper has more than one page. The first page must tell the total number of pages
  • A proper shipping description for each hazardous material.
  • A shipper's certification, signed by the shipper, saying the shipment was prepared according to the regulations.

The Item Description

If a shipping paper describes both hazardous and non-hazardous products, the hazardous materials will be either:

  • Described first.
  • Highlighted in a contrasting color.
  • Identified by an "X" placed before the shipping name in a column captioned "HM.” The letters "RQ" may be used instead of "X" if a reportable quantity is present in one package.

Recognizing Hazardous Materials

Learn to recognize shipments of hazardous materials. To find out if the shipment includes hazardous materials, look at the shipping paper. Does it have:

  • An entry with a proper shipping name, hazard class and identification number?
  • A highlighted entry or one with an X or RQ in the hazardous materials column?
  • What business is the shipper in (e.g., paint dealer, chemical supply, scientific supply house, pest control or agricultural supplier, explosives, munitions or fireworks dealer).
  • Are there tanks with diamond labels or placards on the premises?
  • What type of package is being shipped? Cylinders and drums are often used for hazardous materials shipments.
  • Is a hazard class label, proper shipping name or identification number on the package?
  • Are there any handling precautions?

Placarding Rules & Regulations

Attach the appropriate placards to the vehicle before you drive it. You are only allowed to move an improperly placarded vehicle during an emergency in order to protect life or property. Placards must appear on both sides and both ends of the vehicle. Each placard must be:

  • Easily seen from the direction it faces.
  • Placed so the words or numbers are level and read from left to right.
  • At least 3 inches away from any other markings.
  • Kept clear of attachments or devices such as ladders, doors and tarpaulins.
  • Kept clean and undamaged so that the color, format and message are easily seen.
  • Be affixed to a background of contrasting color.
  • The use of “Drive Safely” and other slogans is prohibited.

The front placard may be on the front of the tractor or the front of the trailer. To decide which placards to use, you need to know:

  • The hazard class of the materials.
  • The amount of hazardous materials shipped.
  • The total weight of all classes of hazardous materials in your vehicle.

Questions You Should Know About Hazardous Materials

  • 1. Shippers package in order to (fill in the blank) the material.
  • 2. Driver placard their vehicle to (fill in the blank) the risk.
  • 3. What three things do you need to know to decide which placards (if any) you need?
  • 4. A hazardous materials identification number must appear on the (fill in the blank) and on the (fill in the blank). The identification number must also appear on cargo tanks and other bulk packaging.
  • 5. Where must you keep shipping papers describing hazardous materials?

Parking a Placarded Vehicle Not Transporting Division 1.1, 1.2 or 1.3 Explosives

You may park a placarded vehicle (not laden with explosives) within 5 feet of the traveled part of the road only if your work requires it. Do so only briefly. Someone must always watch the vehicle when parked on a public roadway or shoulder. Do not uncouple a trailer and leave it with hazardous materials on a public street. Do not park within 300 feet of an open fire.

Attending Parked Vehicles

The person attending a placarded vehicle must:

  • Be in the vehicle, awake and not in the sleeper berth or within 100 feet of the vehicle and have it within clear view.
  • Be aware of the hazards of the materials being transported.
  • Know what to do in emergencies.
  • Be able to move the vehicle, if needed.

Hazmat Route Restrictions

Some states and counties require permits to transport hazardous materials or wastes. They may limit the routes you can use. Local rules about routes and permits change often. It is your job as driver to find out if you need permits or must use special routes. Make sure you have all needed papers before starting.

If you work for a carrier, ask your dispatcher about route restrictions or permits. If you are an independent trucker and are planning a new route, check with state agencies where you plan to travel. Some localities prohibit transportation of hazardous materials through tunnels, over bridges or other roadways. Always check before you start.

Whenever placarded, avoid heavily populated areas, crowds, tunnels, narrow streets and alleys. Take other routes, even if inconvenient, unless there is no other way. Never drive a placarded vehicle near open fires unless you can safely pass without stopping.

Definitions Related To Hazmat Hauling

Bulk packaging - Packaging, other than a vessel or a barge, including a transport vehicle or freight container, in which hazardous materials are loaded with no intermediate form of containment and which has:

  • 1. A maximum capacity greater than 450 L (119 gallons) as a receptacle for a liquid;
  • 2. A maximum net mass greater than 400 kg (882 pounds) or a maximum capacity greater than 450 L (119 gallons) as a receptacle for a solid; or
  • 3. A water capacity greater than 454 kg (1000 pounds) as a receptacle for a gas as defined in Sec. 173.115

Consignee - The business or person to whom a shipment is delivered.

Division - A subdivision of a hazard class.

EPA - U.S. Environmental Protection Agency

FMCSR - The Federal Motor Carrier Safety Regulations.

Portable Tank - Bulk packaging (except a cylinder having a water capacity of 1,000 pounds or less) designed primarily to be loaded onto, or on or temporarily attached to a transport vehicle or ship and equipped with skids, mountings or accessories to facilitate handling of the tank by mechanical means. It does not include a cargo tank, tank car, multiunit tank car tank or trailer carrying 3AX, 3AAX or 3T cylinders.

Reportable Quantity - The quantity specified in Column 2 of the Appendix to Sec. 172.101 for any material identified in Column 1 of the Appendix.

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