DOT Hazmat Employee Training Practice Test 2026: Practice test 2

1. Question 1 of 25

   Which division is "Explosives with no significant blast hazard"?

   • ADivision 2.3
   • BDivision 1.1
   • CDivision 5.2
   • DDivision 1.4
   Show answer

   Answer: D. Division 1.4

   Section 173.2 names Division 1.4 as explosives with no significant blast hazard in its table of Class 1 divisions.

2. Question 2 of 25

   What is Division 2.1?

   • AFlammable gas
   • BFlammable solid
   • CPoisonous gas
   • DNon-flammable compressed gas
   Show answer

   Answer: A. Flammable gas

   Class 2 covers gases, and Division 2.1 is flammable gas in the hazard class table in section 173.2.

3. Question 3 of 25

   What is Division 2.2?

   • AFlammable gas
   • BPoisonous gas
   • COxidizer
   • DNon-flammable compressed gas
   Show answer

   Answer: D. Non-flammable compressed gas

   Division 2.2 is non-flammable compressed gas, a Class 2 gas that does not burn and is not poisonous.

4. Question 4 of 25

   What is Division 2.3?

   • ARadioactive material
   • BOrganic peroxide
   • CPoisonous gas
   • DFlammable gas
   Show answer

   Answer: C. Poisonous gas

   Section 173.2 lists Division 2.3 as poisonous gas, which is also a Table 1 placarding material.

5. Question 5 of 25

   Which hazard class covers flammable and combustible liquids, such as gasoline?

   • AClass 2
   • BClass 4
   • CClass 9
   • DClass 3
   Show answer

   Answer: D. Class 3

   Class 3 is flammable and combustible liquid in section 173.2, and it has no separate divisions.

6. Question 6 of 25

   What is Division 4.3?

   • ASpontaneously combustible material
   • BDangerous when wet material
   • CFlammable solid
   • DInfectious substance
   Show answer

   Answer: B. Dangerous when wet material

   Division 4.3 is dangerous when wet material, which can give off flammable or toxic gas when it contacts water.

7. Question 7 of 25

   What is Division 4.2?

   • ADangerous when wet material
   • BFlammable gas
   • CSpontaneously combustible material
   • DReadily combustible flammable solid
   Show answer

   Answer: C. Spontaneously combustible material

   Section 173.2 lists Division 4.2 as spontaneously combustible material, one of the three Class 4 divisions.

8. Question 8 of 25

   What is Division 5.1?

   • AFlammable solid
   • BOxidizer
   • COrganic peroxide
   • DCorrosive material
   Show answer

   Answer: B. Oxidizer

   Class 5 has two divisions: 5.1 oxidizer and 5.2 organic peroxide, as listed in section 173.2.

9. Question 9 of 25

   What is Division 6.2?

   • ARadioactive material
   • BMiscellaneous hazardous material
   • CInfectious substance
   • DPoisonous material
   Show answer

   Answer: C. Infectious substance

   Division 6.2 is infectious substance (etiologic agent), and Division 6.1 is poisonous material.

10. Question 10 of 25

    Which hazard class is "Radioactive material"?

    • AClass 9
    • BClass 7
    • CClass 6
    • DClass 8
    Show answer

    Answer: B. Class 7

    Section 173.2 lists radioactive material as Class 7, which uses its own labels and placards.

11. Question 11 of 25

    Which hazard class is "Corrosive material", such as battery acid?

    • AClass 3
    • BClass 1
    • CClass 5
    • DClass 8
    Show answer

    Answer: D. Class 8

    Corrosive material, such as many acids and alkalis, is Class 8 in the hazard class table in section 173.2.

12. Question 12 of 25

    Which hazard class is "Miscellaneous hazardous material"?

    • AClass 4
    • BClass 2
    • CClass 7
    • DClass 9
    Show answer

    Answer: D. Class 9

    Class 9 is miscellaneous hazardous material, for hazards that do not fit the other eight classes.

13. Question 13 of 25

    What four items make up the basic description on a shipping paper, in order?

    • AIdentification number, proper shipping name, hazard class or division, packing group
    • BHazard class, ID number, total weight, emergency phone
    • CProper shipping name, weight, consignee name, destination
    • DPacking group, hazard class, carrier name, shipment date
    Show answer

    Answer: A. Identification number, proper shipping name, hazard class or division, packing group

    Section 172.202 requires the ID number, proper shipping name, hazard class or division and packing group in sequence with nothing in between.

14. Question 14 of 25

    How is the packing group shown on a shipping paper?

    • AIn Roman numerals, such as PG II
    • BIn letters, such as PG A, B or C
    • CIn Arabic numerals, such as PG 2
    • DAs a color code
    Show answer

    Answer: A. In Roman numerals, such as PG II

    Section 172.202 says the packing group is shown in Roman numerals, for example PG I, PG II or PG III.

15. Question 15 of 25

    A material has a subsidiary hazard. Where is it shown in the shipping description?

    • AOnly on the label
    • BIn a separate line at the very bottom of the shipping paper
    • CIn parentheses right after the primary hazard class
    • DIt is never shown
    Show answer

    Answer: C. In parentheses right after the primary hazard class

    Subsidiary hazard classes or divisions are entered in parentheses immediately after the primary hazard class or division.

16. Question 16 of 25

    A shipping paper reads "UN1203, Gasoline, 3, PG II". What does the "3" mean?

    • AThe packing group
    • BThe hazard class
    • CThe page number
    • DThe number of drums
    Show answer

    Answer: B. The hazard class

    In the basic description, the item after the proper shipping name is the hazard class or division, here Class 3, flammable liquid.

17. Question 17 of 25

    Besides the basic description, what else must a shipping paper show for each hazmat entry?

    • AThe route and expected arrival time
    • BThe total quantity with a unit of measure, and the number and type of packages
    • CThe driver's name and CDL number
    • DThe declared value of the goods
    Show answer

    Answer: B. The total quantity with a unit of measure, and the number and type of packages

    Section 172.202 requires the total quantity by mass or volume with a unit, and the number and type of packages, such as 12 drums.

18. Question 18 of 25

    When must the emergency response telephone number on a shipping paper be monitored?

    • AOnly after an accident is reported
    • BOnly during the shipper's business hours, with voicemail after hours
    • CAt all times while the material is in transportation
    • DOnly on weekdays
    Show answer

    Answer: C. At all times while the material is in transportation

    Section 172.604 requires the number to be monitored at all times while the hazmat is in transport, including incidental storage.

19. Question 19 of 25

    Which of these may NOT be used as the emergency response telephone number?

    • AAn answering machine
    • BA 24-hour line answered by a knowledgeable person
    • CThe shipper's staffed emergency line
    • DA registered emergency response provider
    Show answer

    Answer: A. An answering machine

    The number must reach a knowledgeable person or someone with immediate access to one, so answering machines, answering services and callback pagers do not qualify.

20. Question 20 of 25

    Where is the emergency response telephone number placed?

    • AOnly on the truck's license plate
    • BOn the bottom of each package
    • COn the shipping paper
    • DOnly on the driver's phone
    Show answer

    Answer: C. On the shipping paper

    Section 172.604 requires the emergency response telephone number to be entered on the shipping paper, usually right after the hazmat description.

21. Question 21 of 25

    A driver is at the wheel with the seat belt on. Where must the hazmat shipping paper be?

    • ALocked in the trailer
    • BWithin reach, and visible or in a holder on the driver's door
    • CAt the company office
    • DIn the glove box or the sleeper berth, as long as it is in the cab
    Show answer

    Answer: B. Within reach, and visible or in a holder on the driver's door

    Section 177.817 requires the paper within the driver's reach while belted, and either visible to someone entering or in a holder on the driver's door.

22. Question 22 of 25

    The driver leaves the cab. Where must the shipping paper be kept?

    • AIn the holder on the driver's door or on the driver's seat
    • BIn the driver's pocket
    • CIn a locked box on the trailer
    • DIn the glove box
    Show answer

    Answer: A. In the holder on the driver's door or on the driver's seat

    When the driver is away from the controls, section 177.817 says the paper must be in the driver-door holder or on the driver's seat.

23. Question 23 of 25

    The hazmat shipping paper is carried with other papers. What must be done?

    • APut it at the bottom of the stack
    • BTab it or put it on top so it stands out
    • CStaple it inside a sealed envelope marked HAZMAT
    • DNothing special
    Show answer

    Answer: B. Tab it or put it on top so it stands out

    Section 177.817 says a hazmat shipping paper kept with other papers must be tabbed or placed on top so authorities can find it quickly.

24. Question 24 of 25

    What must be marked on a non-bulk package of hazardous material?

    • AThe hazard class number and the words HAZARDOUS MATERIAL
    • BThe price of the contents
    • CThe carrier's name
    • DThe proper shipping name and identification number
    Show answer

    Answer: D. The proper shipping name and identification number

    Section 172.301 requires non-bulk packages to be marked with the proper shipping name and ID number from the Hazardous Materials Table.

25. Question 25 of 25

    What letters come before an identification number in a package marking?

    • AUN, NA or ID, as appropriate
    • BDOT only
    • CPG
    • DHM, followed by the hazard class
    Show answer

    Answer: A. UN, NA or ID, as appropriate

    Section 172.301 says the ID number must be preceded by UN, NA or ID, as shown for that material in the 172.101 table.

Keyboard: 1–4 to answer, Enter for the next question.

The real test: No federal exam. Your hazmat employer must test you by appropriate means and certify your training; any pass mark is set by the employer.