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The tanker endorsement applies to drivers who wish to drive a tank in Class A, B, or C CDL. To add this endorsement to your CLP/CDL, you must pass a knowledge test on the problems posed by large volume liquid cargos. The Wisconsin CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The WI tanker test covers the following sections of the Wisconsin CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this WI tanker practice test now to prepare for the actual test!
1. Most heavy trucks with manual transmissions require ____ to change gears.
triple clutching
single clutching
double clutching
None of the above.
2. Skids caused by acceleration can usually be stopped by:
applying the brakes firmly.
swerving to the right.
taking your foot off the accelerator.
swerving to the left.
3. When checking the engine compartment in a vehicle inspection, you should check all of the following except:
Coolant level in radiator
Shock absorbers
Engine oil level
Windshield washer fluid level
4. An ABS system:
keep your wheels from locking when you brake hard.
gives you more control over the vehicle during braking.
helps you avoid skids caused by over braking.
All of the above.
5. What is the main difference between portable tanks and cargo tanks?
The product is loaded or unloaded while the portable tanks are off the vehicle.
Portable tanks are not permanently attached to a vehicle.
Portable tanks must show the lessee or owner’s name.
All of the above.
6. Before unloading explosive materials, you should:
connect heater power sources.
use hooks or other metal tools if possible.
keep the engine running.
turn your engine off.
7. Before leaving your vehicle unattended, you should:
Chock the wheels.
Apply the parking brake.
Remove the keys.
All of the above.
8. When fueling a vehicle containing hazardous materials, you should:
leave the nozzle unattended.
turn off the engine.
call your supervisor.
leave the engine on.
9. On any upgrade, gravity:
doesn't affect your speed.
doubles your speed.
slows you down.
speed you up.
10. At a rest area, you discover your hazardous materials shipments is leaking. There is no phone around. You should:
never park your vehicle.
keep driving slowly until you reach a truck stop.
continue driving in order to find a phone.
send someone else for help and give that person all of the necessary information.
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WI Tanker CDL Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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