CDL Hazmat Endorsement Practice Test

All 30 questions with answers

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1. A placarded vehicle must show placards on:

   1. The back only
   2. The front only
   3. Both sides only
   4. Each side and each end
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   D. Each side and each end On each side and each end, so the hazard can be seen from any direction. (49 CFR 172.504(a))

2. Which of these must be placarded in any amount (Table 1)?

   1. Division 1.1 explosives
   2. Class 3 flammable liquid
   3. Class 8 corrosive
   4. Class 9 miscellaneous
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   A. Division 1.1 explosives Table 1 materials, including Divisions 1.1, 1.2 and 1.3, 2.3 poison gas and 4.3 dangerous when wet, are placarded in any quantity. (49 CFR 172.504(e))

3. Table 2 materials need placards when the total gross weight reaches:

   1. 500 lb
   2. 1,001 lb
   3. 5,000 lb
   4. 100 lb
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   B. 1,001 lb Under 1,001 lb (454 kg) aggregate gross weight of Table 2 materials, placards are not required. (49 CFR 172.504(c))

4. When may a DANGEROUS placard be used?

   1. Only for empty tanks
   2. For any single hazmat
   3. Instead of Table 1 placards
   4. For two or more Table 2 categories, unless 2,205 lb or more of one category was loaded at one place
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   D. For two or more Table 2 categories, unless 2,205 lb or more of one category was loaded at one place It replaces the separate Table 2 placards for a mixed load. But if 1,000 kg (2,205 lb) or more of one category is loaded at one facility, that category's own placard is needed. (49 CFR 172.504(b))

5. While you are at the controls, the hazmat shipping papers must be:

   1. In the trailer with the load
   2. In the sleeper berth
   3. Within your reach with your seat belt fastened, and visible or in the driver-door pocket
   4. In the glove box
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   C. Within your reach with your seat belt fastened, and visible or in the driver-door pocket Within immediate reach while restrained by the lap belt, and either readily visible to someone entering the cab or in a holder on the inside of the driver's door. (49 CFR 177.817(e))

6. When you leave the vehicle, the shipping papers must be:

   1. Locked in a toolbox
   2. Taken with you
   3. On the driver's seat or in the holder on the driver's door
   4. Left with the shipper
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   C. On the driver's seat or in the holder on the driver's door So emergency responders can find them straight away. (49 CFR 177.817(e))

7. On a shipping paper, "RQ" in the HM column means:

   1. Restricted quantity
   2. Radioactive quantity
   3. Reportable quantity
   4. Required quickly
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   C. Reportable quantity An "X" marks a hazardous material; "RQ" replaces it when the amount is a reportable quantity, which must be reported if spilled. (49 CFR 172.201(a))

8. The basic description of a hazardous material on a shipping paper is in this order:

   1. Proper shipping name, weight, ID number
   2. Hazard class, name, ID number, packing group
   3. Packing group, hazard class, name
   4. ID number, proper shipping name, hazard class, packing group
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   D. ID number, proper shipping name, hazard class, packing group Identification number, proper shipping name, hazard class or division, packing group. (49 CFR 172.202)

9. A vehicle carrying Division 1.1, 1.2 or 1.3 explosives must be:

   1. Never left in a safe haven
   2. Attended at all times
   3. Attended only on public roads
   4. Attended only at night
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   B. Attended at all times Attended at all times by the driver or a qualified representative of the carrier, except in an approved safe haven. (49 CFR 397.5(a))

10. A vehicle counts as "attended" when the person in charge is:

    1. On the vehicle awake and not in the sleeper, or within 100 feet with a clear view of it
    2. Asleep in the sleeper berth
    3. Within 300 feet
    4. Anywhere at the same truck stop
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    A. On the vehicle awake and not in the sleeper, or within 100 feet with a clear view of it On the vehicle, awake and not in the sleeper berth, or within 100 feet with the vehicle in unobstructed view. (49 CFR 397.5(d)(1))

11. A vehicle carrying Division 1.1, 1.2 or 1.3 explosives may not be parked:

    1. More than 100 feet from a building
    2. On private property
    3. In a safe haven
    4. On or within 5 feet of the traveled part of a road
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    D. On or within 5 feet of the traveled part of a road Not on or within 5 feet of the traveled portion of a public road, and not on private property without the owner knowing the hazard. (49 CFR 397.7(a))

12. Except for brief operational stops, a vehicle with Division 1.1-1.3 explosives may not be parked within ___ of a bridge, tunnel or building where people work or gather.

    1. 100 feet
    2. 1,000 feet
    3. 50 feet
    4. 300 feet
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    D. 300 feet 300 feet. (49 CFR 397.7(a)(3))

13. Any vehicle carrying hazardous materials must not be parked within ___ of an open fire.

    1. 100 feet
    2. 300 feet
    3. 25 feet
    4. 500 feet
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    B. 300 feet 300 feet from an open fire, whatever the class. (49 CFR 397.7(b))

14. No one may smoke on or within ___ of a vehicle carrying explosives, flammables or oxidizers.

    1. 25 feet
    2. 100 feet
    3. 50 feet
    4. 10 feet
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    A. 25 feet 25 feet. Smoking is also forbidden on or about the vehicle while loading or unloading Class 1, 3, 4, 5 or Division 2.1 materials. (49 CFR 397.13; 177.834(c))

15. When must a driver of a hazmat vehicle examine the tires?

    1. Every 500 miles
    2. Only at inspections
    3. Once a day
    4. At the start of each trip and each time the vehicle is parked
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    D. At the start of each trip and each time the vehicle is parked An overheated tire must be removed and placed a safe distance from the vehicle before driving on. (49 CFR 397.17(a))

16. A vehicle placarded for Class 3 Flammable reaches a railroad crossing. The driver must:

    1. Turn on the four-way flashers and cross
    2. Slow to 15 mph and cross
    3. Stop 15 to 50 feet from the tracks, look and listen, then cross without shifting
    4. Stop only if a train is visible
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    C. Stop 15 to 50 feet from the tracks, look and listen, then cross without shifting Placarded Class 3, Division 1.1-1.3, 2.3, 4.3, 5.1, 2.2, Class 7 and chlorine loads, and cargo tanks used for hazmat, must stop. (49 CFR 392.10(a))

17. Who must provide the placards for a hazmat shipment?

    1. The shipper, when offering the material, unless the vehicle is already placarded for it
    2. The receiver
    3. The driver buys them
    4. The state DMV
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    A. The shipper, when offering the material, unless the vehicle is already placarded for it The person offering the material must give the motor carrier the placards, and the carrier may not move the load without them. (49 CFR 172.506(a))

18. Emergency response information must be:

    1. Immediately available at all times while the hazardous material is present
    2. Provided only on request after an incident
    3. Posted on the trailer door
    4. Kept at the carrier's office
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    A. Immediately available at all times while the hazardous material is present Including the emergency response telephone number, and available to any government responder. (49 CFR 172.602(c))

19. Division 4.3 materials are:

    1. Poisons
    2. Flammable gases
    3. Organic peroxides
    4. Dangerous when wet
    Show answer

    D. Dangerous when wet They give off flammable or toxic gas when wet. They are a Table 1 material, placarded in any amount. (49 CFR 172.504(e))

20. Class 8 materials are:

    1. Radioactive
    2. Explosives
    3. Corrosive
    4. Miscellaneous
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    C. Corrosive Class 8 is corrosive material. Class 7 is radioactive, Class 9 miscellaneous. (49 CFR 172.504(e))

21. Division 1.1 means:

    1. Fire hazard
    2. Very insensitive explosives
    3. Projection hazard
    4. Mass explosion hazard
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    D. Mass explosion hazard 1.1 mass explosion, 1.2 projection hazard, 1.3 fire hazard, 1.4 minor explosion hazard, 1.5 very insensitive, 1.6 extremely insensitive. (49 CFR 173.50)

22. Packing Group I indicates:

    1. Not hazardous
    2. Minor danger
    3. Great danger
    4. Medium danger
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    C. Great danger Packing Group I is great danger, II medium, III minor. (CDL manual)

23. The total transport index of radioactive packages in one vehicle may not exceed:

    1. 50
    2. 200
    3. 10
    4. 100
    Show answer

    A. 50 Add up the transport index numbers on the labels. The total must not exceed 50, except for exclusive use shipments. (49 CFR 177.842(a))

24. What else does a hazmat endorsement require besides the knowledge test?

    1. A second medical exam
    2. A road test in a tanker
    3. A TSA security threat assessment
    4. Five years of CDL experience
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    C. A TSA security threat assessment The state cannot issue, renew or transfer an H endorsement until TSA finds the driver does not pose a security threat. (49 CFR 1572; 383.141)

25. Your trailer catches fire and you are carrying hazmat. You should:

    1. Not open the doors; keep the shipping papers with you for responders
    2. Drive on to the next exit
    3. Move the load out by hand
    4. Open the trailer doors to see the fire
    Show answer

    A. Not open the doors; keep the shipping papers with you for responders Opening the doors feeds air to the fire and can make it spread. Stay clear, keep people away and give responders the shipping papers. (CDL manual)

26. Hazmat is leaking from your vehicle. Which is right?

    1. Hose it off the road
    2. Touch it to find out what it is
    3. Drive to a service station to clean it
    4. Do not touch or step in it, keep people away and upwind, call for help
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    D. Do not touch or step in it, keep people away and upwind, call for help Identify it from the shipping papers, not by touch or smell. Do not move the vehicle more than safety requires. (CDL manual)

27. A shipping paper lists both hazardous materials and ordinary freight. The hazmat entries must be:

    1. Listed first, printed in a contrasting color, or marked with an X in the HM column
    2. The trailer number
    3. Listed in order of weight
    4. The shipper's address
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    A. Listed first, printed in a contrasting color, or marked with an X in the HM column On a paper listing both, hazmat entries must be listed first, printed in a contrasting color, or identified with an X (or RQ) in an HM column. (49 CFR 172.201(a)(1))

28. Where should you look first to identify a hazardous material in an emergency?

    1. The shipping papers
    2. Ask the shipper by phone
    3. The placard color only
    4. The load itself
    Show answer

    A. The shipping papers The shipping papers name the material, its class and the emergency contact number, and carry the emergency response information. (49 CFR 172.602)

29. An "X" before the shipping description in the HM column means:

    1. The item is a hazardous material
    2. The item is empty
    3. The item is exempt
    4. The item is cancelled
    Show answer

    A. The item is a hazardous material An X in the HM column identifies a hazardous material entry. RQ may replace the X for a reportable quantity. (49 CFR 172.201(a)(1)(iii))

30. Who may you let ride in a placarded vehicle?

    1. Only people authorized by the carrier
    2. Hitchhikers if they sign a waiver
    3. Anyone you choose
    4. Family members only
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    A. Only people authorized by the carrier Unauthorized passengers are not allowed. Riders need the carrier's authorization, whatever you are carrying. (49 CFR 392.60)