CDL Hazmat Endorsement Practice Test 2026: Test próbny 3

1. Pytanie 1 z 25

   When loading or unloading explosives or flammable liquids, what should you do with the engine?

   • ARun it to keep the cab warm
   • BLeave it running at a high idle
   • CTurn it off unless it runs a pump
   • DStart it every few minutes
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   Odpowiedź: C. Turn it off unless it runs a pump

   Turn off the engine when loading or unloading explosives or flammable liquids, unless you need it to run a pump.

2. Pytanie 2 z 25

   What is the rule about cargo heaters when you carry explosives, flammable liquids or flammable gases?

   • AThey are required in winter
   • BThey are allowed if the load is small
   • CThey are generally not allowed
   • DThey must be on high
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   Odpowiedź: C. They are generally not allowed

   Cargo heaters are generally banned for explosives, flammable liquids and flammable gases.

3. Pytanie 3 z 25

   What kind of cargo space must you use for explosives, flammable solids and oxidizers?

   • AAny space, as long as the load is tied
   • BAn open flatbed with the load hanging over
   • CA closed space, with no overhanging load
   • DThe driver's cab, where you can watch it
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   Odpowiedź: C. A closed space, with no overhanging load

   These materials must be in a closed cargo space. Overhanging or tailgate loads are not allowed.

4. Pytanie 4 z 25

   What kind of floor lining is required when loading explosives?

   • ANo lining is ever needed
   • BA wet rubber mat
   • CA steel plate
   • DA lining with no steel or iron
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   Odpowiedź: D. A lining with no steel or iron

   Floor linings for explosives must not contain steel or iron, which can make sparks.

5. Pytanie 5 z 25

   How must you handle explosives packages?

   • AThrow them gently onto the trailer
   • BStack them as high as possible
   • CNever drop, throw or roll them
   • DSlide them on sharp edges
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   Odpowiedź: C. Never drop, throw or roll them

   Handle explosives carefully. Keep them away from sharp points and never drop, throw or roll them.

6. Pytanie 6 z 25

   Which combination may NOT carry Division 1.1 or 1.2 explosives?

   • AA van with closed doors
   • BA tractor with one semitrailer
   • CA triples combination
   • DA single straight truck
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   Odpowiedź: C. A triples combination

   Division 1.1 or 1.2 explosives may not be carried in a triples combination.

7. Pytanie 7 z 25

   For radioactive materials, what is the most total transport index allowed on one vehicle?

   • A500
   • B100
   • C50
   • D10
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   Odpowiedź: C. 50

   The total transport index of all radioactive packages on one vehicle must not be more than 50.

8. Pytanie 8 z 25

   Where must packages labeled POISON never be carried?

   • AIn the cab or sleeper, or with food
   • BOn a pallet with other freight
   • CIn a closed, locked trailer
   • DAt the front of the trailer
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   Odpowiedź: A. In the cab or sleeper, or with food

   Never carry poison packages in the cab or sleeper, or in the same vehicle with foodstuffs.

9. Pytanie 9 z 25

   Where may nitric acid be loaded?

   • AAnywhere in the trailer
   • BNot above any other product
   • COnly on top of other products
   • DOnly in the cab
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   Odpowiedź: B. Not above any other product

   Never load nitric acid above any other product.

10. Pytanie 10 z 25

    Which materials may not be loaded or stored with acids?

    • APaper
    • BCyanides
    • CCotton
    • DSand
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    Odpowiedź: B. Cyanides

    Cyanides must not be loaded or stored with acids.

11. Pytanie 11 z 25

    How should you load glass carboys of corrosive liquid?

    • AUpright, one at a time
    • BOn their sides, stacked high
    • CSeveral at once by dropping them in
    • DUpside down
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    Odpowiedź: A. Upright, one at a time

    Load corrosive carboys by hand, one by one, keeping them upright.

12. Pytanie 12 z 25

    A hazmat package is leaking at the dock. What should you do?

    • APut it in the cab to watch it
    • BLoad it at the back of the trailer
    • CDo not accept or transport it
    • DTape it and drive
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    Odpowiedź: C. Do not accept or transport it

    Never transport leaking packages. Refuse them.

13. Pytanie 13 z 25

    On the segregation table, what does an X mean for two hazard classes?

    • AThey may not be loaded together
    • BThey may be loaded together
    • CThey must ride in the cab
    • DThey need extra placards
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    Odpowiedź: A. They may not be loaded together

    An X means the materials may not be loaded on the same vehicle. An O means they must be separated so they cannot mix.

14. Pytanie 14 z 25

    A placarded vehicle comes to a railroad crossing. Where must it stop?

    • AIt does not need to stop at all
    • B15 to 50 feet from the nearest rail
    • CRight at the edge of the first rail
    • DAt least 100 feet from the tracks
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    Odpowiedź: B. 15 to 50 feet from the nearest rail

    Placarded vehicles and certain hazmat cargo tanks must stop within 50 feet of, and not closer than 15 feet to, the tracks.

15. Pytanie 15 z 25

    What must you never do while driving across railroad tracks with a hazmat load?

    • AShift gears
    • BLook both ways
    • CUse a low gear
    • DKeep moving
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    Odpowiedź: A. Shift gears

    Do not shift gears while crossing the tracks.

16. Pytanie 16 z 25

    When must a vehicle with Division 1.1, 1.2 or 1.3 explosives be attended?

    • AOnly when parked longer than one hour
    • BOnly on public roads
    • CAt all times
    • DOnly at night
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    Odpowiedź: C. At all times

    A vehicle carrying these explosives must be attended at all times by the driver or another qualified person.

17. Pytanie 17 z 25

    Under the attendance rule, when is a hazmat vehicle attended?

    • AWhen the engine is running and the flashers are on, even if no one is near
    • BWhen you are awake in it (not in the sleeper) or within 100 feet with a clear view
    • CWhen the doors are locked and the alarm is set, even if you are inside a store
    • DWhen someone from the company is within 1 mile and can be reached by phone
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    Odpowiedź: B. When you are awake in it (not in the sleeper) or within 100 feet with a clear view

    Attended means you are awake in the vehicle and not in the sleeper berth, or within 100 feet with the vehicle in clear view.

18. Pytanie 18 z 25

    How close to the traveled part of a road may you park a vehicle with Division 1.1, 1.2 or 1.3 explosives?

    • ARight on the road edge
    • BNo closer than 5 feet
    • C10 feet only at night
    • DNo closer than 1 mile
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    Odpowiedź: B. No closer than 5 feet

    Do not park explosives vehicles on or within 5 feet of the traveled part of a road.

19. Pytanie 19 z 25

    Except for brief stops, how far must a vehicle with Division 1.1, 1.2 or 1.3 explosives park from bridges, tunnels and buildings?

    • AAt least 300 feet
    • BAt least 100 feet
    • CAt least 1,000 feet
    • DAt least 25 feet
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    Odpowiedź: A. At least 300 feet

    These vehicles may not park within 300 feet of a bridge, tunnel, dwelling or place where people work or gather, except briefly.

20. Pytanie 20 z 25

    How close to an open fire may a placarded hazmat vehicle park?

    • ANo closer than 25 feet
    • BThere is no rule
    • CNo closer than 50 feet
    • DNo closer than 300 feet
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    Odpowiedź: D. No closer than 300 feet

    Do not park a hazmat vehicle within 300 feet of an open fire.

21. Pytanie 21 z 25

    While fueling a hazmat vehicle, what must happen?

    • AThe driver waits inside the store
    • BEngine off, and someone at the nozzle
    • CEngine running, to keep power on
    • DThe tank is filled right to the top
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    Odpowiedź: B. Engine off, and someone at the nozzle

    Turn off the engine, and a person must control the fueling at the point where the tank is filled.

22. Pytanie 22 z 25

    When must you check the tires on a hazmat vehicle?

    • AOnly when a tire looks low or flat
    • BOnly at the end of each trip
    • CAt the start of each trip and each time you park
    • DOnce a week, at the company yard
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    Odpowiedź: C. At the start of each trip and each time you park

    Inspect each tire at the beginning of each trip and each time the vehicle is parked.

23. Pytanie 23 z 25

    You find an overheated tire on a hazmat vehicle. What must you do?

    • ALet some air out and keep on driving
    • BRemove it and move it a safe distance away
    • CDrive faster so air flow cools it
    • DSpray it with water and keep driving
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    Odpowiedź: B. Remove it and move it a safe distance away

    An overheated tire must be removed right away and placed a safe distance away. Fix the cause before driving.

24. Pytanie 24 z 25

    A tire on your hazmat vehicle is flat. What may you do?

    • ADrive at normal speed until it overheats
    • BLet air out of the other tires
    • CDrive to your destination
    • DDrive only to the nearest safe place to fix it
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    Odpowiedź: D. Drive only to the nearest safe place to fix it

    A flat or leaking tire must be fixed before driving, but you may drive to the nearest safe place to repair it.

25. Pytanie 25 z 25

    What size fire extinguisher must a placarded vehicle carry?

    • AOne rated 1 A or more
    • BOne rated 2 B:C or more
    • COne rated 10 B:C or more
    • DAny size at all
    Pokaż odpowiedź

    Odpowiedź: C. One rated 10 B:C or more

    Power units of placarded vehicles must have a fire extinguisher rated 10 B:C or more.

Klawiatura: 1–4, aby odpowiedzieć, Enter – następne pytanie.

Prawdziwy egzamin: Varies by state; usually 30 questions, with 24 correct needed (80%)