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Hazardous Materials Free CDL Practice Tests
Page 9

Prepare For The Hazardous Materials Portion Of Your CDL Written Exams

Hazardous Materials Questions

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When loading or unloading explosives, your engine should be:
  • Turned off or on, it doesn't matter
  • Turned off
  • Turned on
  • Warmed up
Click here to look up the answer

From The CDL Manual

Precautions for Specific Hazards — Explosives:

Turn off your engine before loading or unloading any explosives. Then check the cargo space.

Next
When loading or unloading explosives, which of the following is true of the cargo space itself?
  • Make sure that there are no sharp points
  • All of these are points of a proper cargo space inspection
  • Disable cargo heaters, and drain heater fuel tanks
  • Be sure there are no broken side or floor boards
Click here to look up the answer

From The CDL Manual

Precautions for Specific Hazards —

Class 1 (Explosives) Materials: Turn your engine off before loading or unloading any explosives. Then check the cargo space. You must:

  • Disable cargo heaters. Disconnect heater power sources and drain heater fuel tanks.
  • Make sure there are no sharp points that might damage cargo. Look for bolts, screws, nails, broken side panels and broken floorboards.
  • Use a floor lining with Division 1.1, 1.2 or 1.3. The floors must be tight and the liner must be either non-metallic material or non-ferrous metal.
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Next
In vehicles transporting Division 1.1, 1.2, or 1.3 materials, the portion of the interior in contact with the load must be lined with:
  • Gold leaf
  • Fur or leather
  • Non-metallic material on non-ferrous metals
  • Aluminum alloy on wood
Click here to look up the answer

From The CDL Manual

Precautions for Specific Hazards — Explosives:

Turn off your engine before loading or unloading any explosives. Then check the cargo space.

  • Disable cargo heaters. Disconnect heater power sources and drain heater fuel tanks.
  • Make sure there are no sharp points that might damage cargo. Look for bolts, screws, nails, broken side panels and broken floor boards.
  • Vehicles transporting Division 1.1, 1.2, or 1.3 (explosive) materials must have tight floors with that portion of the interior in contact with the load lined with non-metallic material on non-ferrous metals.
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Next
When loading, unloading, or moving explosives, when is it ok to use a metal hook?
  • Anytime
  • Only on Division 1.2 materials
  • Never
  • When it will speed up the process significantly
Click here to look up the answer

From The CDL Manual

Use extra care to protect explosives. Never use hooks or other metal tools. Never drop, throw or roll packages. Protect explosive packages from other cargo that might cause damage.

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Next
When transporting damaged packages of explosives, you should:
  • You should never transport damaged packages of explosives
  • Keep them separated from the rest of the load
  • Wrap them in heavy plastic
  • Load them on the back
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From The CDL Manual

Never transport damaged packages of explosives. Do not take a package that shows any dampness or oily stain.

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Next
Division 1.1 or 1.2 cannot be loaded or transported in which of the following cases?
  • The other trailer contains Class 7 radioactive materials labeled "Yellow III"
  • One of the vehicles is "Initiating Explosives"
  • One of the vehicles in the combo is a placarded tank
  • All of these prohibit transportation of explosives
Click here to look up the answer

From The CDL Manual

Do not transport Division 1.1 or 1.2 in vehicle combinations if:

There is a marked or placarded cargo tank in the combination.

The other vehicle in the combination contains:

Division 1.1 A (Initiating Explosives).

Packages of Class 7 (Radioactive) materials labeled "Yellow III."

Division 2.3 (Poisonous Gas) or Division 6.1 (Poisonous) materials.

Hazardous materials in a portable tank, on a DOT Spec 106A or 110A tank.

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Next
All of the following are acceptable methods of transporting Class 2 hazmat except:
  • Leaning against the wall at a 45 degree angle
  • In boxes that won't turn over
  • Braced laying down flat or held upright
  • In racks attached to the vehicle
Click here to look up the answer

From The CDL Manual

Class 2 (compressed gases) including cryogenic liquids –

If your vehicle does not have racks to hold cylinders, the cargo space floor must be flat. The cylinders must be:

  • Held upright or braced lying down flat, or
  • In racks attached to the vehicle, or
  • In boxes that will keep them from turning over.
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Next
Transporting poisons or inhalation hazards in the cab or sleeping berth is acceptable when?
  • Never
  • The trip is under 250 miles
  • The rest of the cargo is food-grade material
  • There is no more space in the trailer
Click here to look up the answer

From The CDL Manual

Division 2.3 (poisonous gas) or Division 6.1 (poisonous) materials –

Never transport these materials in containers with interconnections. Never load a package labeled POISON, POISON-INHALATION HAZARD or POISON GAS in the driver’s cab or sleeper berth. Except for poison materials (6.1) marked or labeled as PGIII, never transport a package labeled POISON or POISON INHALATION HAZARD with foodstuffs or edible materials for human or animal consumption.

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Next
The degree of control needed when transporting radioactive materials is called the:
  • Radioactive index
  • Transport degree
  • Transport risk
  • Transport index
Click here to look up the answer

From The CDL Manual

Class 7 (radioactive) materials –

Some packages of Class 7 (radioactive) materials bear a number called the “transport index.” The shipper labels these packages Radioactive II or Radioactive III, and prints the package’s transport index on the label. Radiation surrounds each package, passing through all nearby packages.

To deal with this problem, the number of packages you can load together is controlled. Their closeness to people, animals and unexposed film also is controlled. The transport index tells the degree of control needed during transportation. The total transport index of all packages in a single vehicle must not exceed 50 (see Figure 9.7 on page 98).

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Next
The total transport index on a single vehicle cannot be more than:
  • 40
  • 50
  • 98
  • 80
Click here to look up the answer

From The CDL Manual

Class 7 (radioactive) materials –

Some packages of Class 7 (radioactive) materials bear a number called the “transport index.” The shipper labels these packages Radioactive II or Radioactive III, and prints the package’s transport index on the label. Radiation surrounds each package, passing through all nearby packages.

To deal with this problem, the number of packages you can load together is controlled. Their closeness to people, animals and unexposed film also is controlled. The transport index tells the degree of control needed during transportation. The total transport index of all packages in a single vehicle must not exceed 50 (see Figure 9.7 on page 98).

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