CDL hazardous materials practice test

1. Where must a package labeled POISON or POISON INHALATION HAZARD be placed when loading it onto a commercial vehicle?

1. In the driver’s cab
2. In the sleeper berth
3. In the cargo area, separate from food materials
4. On top of food materials for human consumption

2. What action is required if the words "INHALATION HAZARD" appear on the shipping paper or package?

1. Display the POISON INHALATION HAZARD or POISON GAS placards in addition to other required placards.
2. Remove all other placards and display only the POISON INHALATION HAZARD placard.
3. Use a generic shipping name accompanied by a technical name on the shipping paper.
4. Ensure the identification number is preceded by "UN" instead of "NA".

3. If your engine runs a pump during the delivery of compressed gas, when should you turn off the engine?

1. After product transfer, before you unhook the hose.
2. Before starting the product transfer.
3. After unhooking the hose.
4. Only when the tank is empty.

4. What is the maximum total transport index allowed for all Class 7 (Radioactive) packages loaded in a single vehicle?

1. 20
2. 50
3. 100
4. There is no limit

5. What information must appear in the lower corner of a placard identifying the primary or subsidiary hazard class?

1. The hazard class or division number.
2. The total weight of the hazardous material.
3. The name of the shipping company.
4. The date of the last inspection.

6. How long does a carrier have to submit a detailed written report following an incident involving hazardous materials?

1. Within 30 days of the incident
2. Within 24 hours of the incident
3. Within 7 days of the incident
4. Within 60 days of the incident

7. What do the letters "NA" preceding an identification number signify regarding the material's transportation?

1. The material is only used within the United States and to and from Canada.
2. The material is exclusively for international transportation outside North America.
3. The material is a generic shipping name requiring a technical name.
4. The material is a marine pollutant subject to water transport rules.

8. How often must hazardous materials employees be trained and tested according to the regulations?

1. At least once every three years
2. Every year
3. Every five years
4. Only when new regulations are issued

9. When calling the National Response Center to report a hazardous materials incident, which specific detail regarding the materials must be provided if available?

1. The classification, name, and quantity of hazardous materials involved
2. The manufacturer's warranty expiration date
3. The color of the shipping container
4. The driver's home address

10. When parking a vehicle loaded with Division 1.1, 1.2, or 1.3 explosives, what is the minimum distance required from a bridge, tunnel, building, place where people gather, or open fire?

1. 300 feet.
2. 25 feet.
3. 100 feet.
4. 5 feet.

11. What is the maximum age of the certificate of radioactive materials training that a driver must carry when transporting route controlled radioactive materials?

1. Within the last two years
2. Within the last three years
3. Within the last five years
4. Within the last year

12. Which type of bulk packaging is defined as being permanently attached to the vehicle?

1. Portable tanks
2. Cargo tanks
3. Intermediate bulk containers (IBCs)
4. Dump trucks

13. How must a bulk package be placarded if it contains only the residue of a hazardous material?

1. It must be placarded even if it only contains residue.
2. It does not need to be placarded if the residue amount is less than 1,001 pounds.
3. It must be placarded only if the residue is visible through the container walls.
4. It does not need to be placarded because the material has been emptied.

14. How long must an employer keep a record of hazardous materials training for an employee?

1. As long as the employee is working with hazardous materials, and for 90 days thereafter
2. Only while the employee is currently employed
3. For one year after employment ends
4. Indefinitely, regardless of employment status

15. What equipment is required for a driver transporting chlorine in cargo tanks?

1. An approved gas mask and an emergency kit for controlling leaks in dome cover plate fittings.
2. A standard dust mask and a basic first aid kit.
3. Only an approved gas mask.
4. Only an emergency kit for controlling leaks in dome cover plate fittings.

16. When stopping before a railroad crossing with a placarded vehicle, what is the required stopping distance and action?

1. Stop 15 to 50 feet before the nearest rail, activate four-way flashers, and look and listen in both directions.
2. Stop immediately at the rail and look only to the left.
3. Stop 5 to 10 feet before the rail and proceed without stopping if the track is clear.
4. Stop 100 feet before the rail and honk the horn twice.

17. Which of the following is true regarding the 'INHALATION HAZARD' designation on shipping papers?

1. POISON GAS or POISON INHALATION placards must be displayed in addition to other required placards.
2. The standard 1,000-pound exception applies, so no placard is needed for small quantities.
3. Only the generic DANGEROUS placard is required for these materials.
4. No additional placards are needed if the primary hazard class placard is already displayed.

18. When must a shipper display the letters "RQ" on the shipping paper and package?

1. When hazardous substances are being transported in a reportable quantity or greater in one package.
2. Whenever any hazardous material is transported, regardless of quantity.
3. Only when the material is a marine pollutant listed in Appendix B.
4. When the material is a generic shipping name without a technical name.

19. When loading or unloading a cargo tank, what is the maximum distance the attending person must be from the tank?

1. Within 25 feet of the tank.
2. Within 100 feet of the tank.
3. Within 5 feet of the traveled part of the road.
4. Within 300 feet of the tank.

20. How many sides of a portable tank holding less than 1,000 gallons must display the identification number?

1. Only the front
2. Two opposing sides
3. All four sides
4. Only the rear

21. What specific endorsement must a driver hold before driving a vehicle used to transport materials requiring hazardous material placarding?

1. A commercial driver license (CDL) with a HAZMAT endorsement
2. A standard Class C driver license
3. A passenger endorsement
4. A general commercial driver license without endorsements

22. If you discover a cargo leak, how should you identify the hazardous materials?

1. By using shipping papers, labels, or package location.
2. By smelling the material to determine its chemical composition.
3. By touching the leaking material to check its viscosity.
4. By guessing based on the color of the liquid.

23. When loading or unloading flammable liquids, when should the engine be turned off?

1. Before loading or unloading any flammable liquids.
2. After closing the filling hole.
3. Only if the tank is completely empty.
4. After unhooking the hose.

24. Under what specific condition may a driver use a generic 'DANGEROUS' placard instead of separate placards for each hazard class?

1. When the vehicle carries more than 1,001 pounds of two or more Table 2 hazard classes requiring different placards, and no single class exceeds 2,205 pounds.
2. When the vehicle carries exactly 1,000 pounds of hazardous materials, regardless of the number of hazard classes involved.
3. When the vehicle carries less than 1,001 pounds of hazardous materials, provided the materials are not in bulk packaging.
4. When the vehicle carries more than 2,205 pounds of a single hazard class, allowing for simplified identification.