DOT HAZMAT 49CFR EXAM QUESTIONS AND CORRECT ANSWERS 2024/2025 LATEST UPDATE ALREADY PASSED
What placard must be used with an inhalation hazard load? - a. Flammable
b. Dangerous
c. Poison
d. All of the above
C
A safe haven is one place you can leave a vehicle unattended that is hauling...
What placard must be used with an inhalation hazard load? - a. Flammable
b. Dangerous
c. Poison
d. All of the above
C
A safe haven is one place you can leave a vehicle unattended that is hauling
explosives. What is the best description of a safe haven? - a. Any property that has
been government approved for this use.
b. Any property that is totally fenced in by an 8 foot high fence and has a guard on duty
all day long.
c. Any property that is totally fenced in by an 8 foot high fence.
d. All of the above
A
Which of the following is one of the three keys to identify which placard to use? - a.
Materials hazard class
b. Amount being shipped
c. Both a and b
d. Whether the cargo is a liquid or solid.
C
When is it necessary to ground the trailer? - a. Only when filling a trailer with explosives.
b. When filling or unloading any flammable liquid tank. Ground must be maintained until
filling hole is properly closed.
c. Only when unloading a cargo tank filled with any flammable liquid.
d. None of the above.
B
You may not park a vehicle carrying hazardous materials within ____ feet of an open
fire. - a. 300
b. 200
c. 150
d. 100
, A
With most hazardous materials, you may park within 5 feet of the road briefly. If your
work requires it. The materials that are the exception and do not allow parking this close
to the road are. - a. Acids and poisons
b. Explosives A and B
c. Liquids
d. Corrosives and oxidizers
B
You do not have a hazardous materials endorsement on your commercial driver license.
When can you legally haul hazardous materials? - a. Never
b. Only when the shipment does not cross state lines
c. Only when the load is placarded
d. All of the above
A
The basic description of a hazardous material includes the hazard class, the id number,
and the proper shipping name. Which one must appear first on the shipping paper? - a.
The box number
b. The identification number
c. The hazard class
d. The proper shipping name
D
When fueling a placarded vehicle, someone must always be: - a. Within 10 feet of the
pump with a fire extinguisher.
b. At the emergency power shut off for the pump.
c. At the nozzle, controlling the fuel flow.
d. Be at the rear most corner on the vehicle.
B
A driver that hauls hazardous materials must attend training every: - a. 3 years
b. 2 years
c. 1 year
d. None of the above
B
An "A/W" the first column of the hazardous materials table means: - a. This material has
no restrictions when shipped by air and/or water
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