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District Of Columbia CDL HazMat Test 1
Practice mode
Question
1
of 25
QUESTION 1 / 25
Containers of hazardous materials must be:
Choose one answer below.
A
Packed in larger brown-colored containers.
✓
B
Braced to prevent movement during transportation.
✓
C
Made of cardboard.
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D
A maximum of four feet tall.
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QUESTION 2 / 25
In the Hazardous Materials Table, Column 2 lists:
Choose one answer below.
A
The names of materials.
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B
Where materials originate.
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C
Special provisions for materials.
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D
Materials' manufacturers.
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QUESTION 3 / 25
When refueling a vehicle that contains hazardous materials:
Choose one answer below.
A
The engine should be left on.
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B
The engine should be turned off.
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C
The gas nozzle may be left unattended.
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D
No other vehicles should be at the refueling station.
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QUESTION 4 / 25
When loading hazardous materials, you should do all of the following, except:
Choose one answer below.
A
Set the parking brake.
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B
Load the materials away from heat.
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C
Watch for signs of leakage.
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D
Use a hook.
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QUESTION 5 / 25
What shape is a placard indicating hazardous materials?
Choose one answer below.
A
Diamond
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B
Triangle
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C
Circle
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D
Octagon
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QUESTION 6 / 25
When loading or unloading explosive materials, you should:
Choose one answer below.
A
Keep the engine running.
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B
Turn off the engine.
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C
Use sharp-pointed tools to open the packages.
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D
Toss packages.
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QUESTION 7 / 25
Who is responsible for identifying the hazard class of materials being shipped?
Choose one answer below.
A
The shipper
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B
The carrier
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C
The driver
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D
The mechanic
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QUESTION 8 / 25
If you are transporting explosives and your vehicle breaks down, you may notify other drivers:
Choose one answer below.
A
With flares.
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B
With electric lights.
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C
By standing on the roadway and waving your arms.
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D
By keeping the driver's side door open.
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QUESTION 9 / 25
If required, ____ identical placards must be placed on a vehicle.
Choose one answer below.
A
Two
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B
Four
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C
Six
✓
D
Eight
✓
QUESTION 10 / 25
How must a shipper notify a driver of the risks associated with their cargo?
Choose one answer below.
A
By speaking with the driver
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B
By writing a note on a blank piece of paper
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C
By putting hazard warning labels on packages
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D
By placing orange dots on packages
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QUESTION 11 / 25
The only way to properly check tire pressure is by:
Choose one answer below.
A
Using a tire pressure gauge.
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B
Eyeballing the tire.
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C
Pushing on the tire with your hand.
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D
Measuring the height of the tire.
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QUESTION 12 / 25
If the words "Inhalation Hazard" appear on a package, a ____ placard must be used.
Choose one answer below.
A
Poison gas
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B
Explosive
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C
Radioactive
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D
Danger
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QUESTION 13 / 25
The only way to properly check your tire pressure is by:
Choose one answer below.
A
Using a tire pressure gauge.
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B
Eyeballing the tires.
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C
Pushing on the tires to feel the pressure.
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D
Weighing the tires.
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QUESTION 14 / 25
If a package contains liquid containers, the package must display:
Choose one answer below.
A
Arrows pointing in the correct upright direction.
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B
A return address.
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C
The number of containers inside the box.
✓
D
The word "fragile."
✓
QUESTION 15 / 25
In general, when loading a tank with flammable liquids:
Choose one answer below.
A
The engine should be running.
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B
A ground should be established before opening the filling hole.
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C
A ground should be broken right before opening the filling hole.
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D
The filling hole should be locked during loading.
✓
QUESTION 16 / 25
What could indicate that a shipment you are accepting contains hazardous materials?
Choose one answer below.
A
The cargo is stored in cylinder tanks.
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B
The cargo is picked up from a supermarket.
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C
The cargo is packaged in cardboard boxes.
✓
D
The cargo has green packaging.
✓
QUESTION 17 / 25
Placarded vehicles must carry fire extinguishers with a minimum rating of:
Choose one answer below.
A
10 B:C.
✓
B
20 C.
✓
C
10 A:B.
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D
5 B:C.
✓
QUESTION 18 / 25
What must be included in emergency response information?
Choose one answer below.
A
Risks of fire or explosion
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B
Value of the materials
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C
Driver information
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D
Planned route
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QUESTION 19 / 25
An explosive material is most likely categorized as a ____ hazard.
Choose one answer below.
A
Class 1
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B
Class 3
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C
Class 6
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D
Class 7
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QUESTION 20 / 25
When a shipper packages hazardous materials, they certify that the package:
Choose one answer below.
A
Does not contain hazardous materials.
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B
Has been prepared in compliance with the rules.
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C
Was packed at a specific location.
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D
Will be placed on the trailer first.
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QUESTION 21 / 25
How do you label a hazardous material if the proper label will not fit on the material's package?
Choose one answer below.
A
The label may be placed on a tag securely attached to the package.
✓
B
A scannable QR code may instead be attached to the package.
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C
The HazMat label should be reduced in size to fit on the package.
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D
The label may be pasted to the wall of the trailer.
✓
QUESTION 22 / 25
On a shipping paper, if the letter “G” appears in Column 1, what else needs to appear?
Choose one answer below.
A
The technical name of the hazardous material
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B
The type of packaging containing the hazardous material
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C
The shipper’s phone number
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D
The date the product was packed
✓
QUESTION 23 / 25
When transporting hazardous materials, placards:
Choose one answer below.
A
Should only be used with explosives.
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B
Should be used on all four sides of a vehicle.
✓
C
Should only be used by Class A licensed drivers.
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D
Should be used to reduce insurance rates.
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QUESTION 24 / 25
When placing a placard:
Choose one answer below.
A
It should be at least three inches away from any other markings.
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B
It could be placed under a ladder if space is an issue.
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C
It can be affixed to a background of similar color.
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D
It can be upside down.
✓
QUESTION 25 / 25
Regulations require hazardous materials employees to be trained and tested how often?
Choose one answer below.
A
Once every year
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B
Once every three years
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C
Once every five years
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D
Once every 10 years
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