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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 Idaho CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The ID tanker test covers the following sections of the Idaho CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this ID tanker practice test now to prepare for the actual test!
1. During freezing weather, which area is most likely to be slippery after it rains?
Shaded areas.
All of the above.
2. Before loading or unloading any flammable liquids, you should:
start the engine.
turn off the engine.
turn on the headlights.
3. You are more at risk of being fatigued:
when driving alone.
after getting more than 8 hours of sleep.
when stopping periodically during long trips.
4. Rims with welding repairs:
can be used for tires in the rear of the vehicle.
can be used for tires in the front of the vehicle.
are not safe.
5. Excessive use of the service brakes results in overheating. Too much heat can:
cause the brakes to grab.
make the brakes stop working.
cause the brakes apply unevenly.
6. Texting is:
safer than talking on a cell phone.
the most dangerous distraction.
about as safe as adjusting the radio.
7. When driving in hot weather, drivers should inspect tires:
every 4 hours or every 200 miles.
every 2 hours or every 100 miles.
every 3 hours or every 75 miles.
8. Shipping papers must include:
an emergency response telephone number.
what the materials will be used for.
the price of the hazardous materials.
9. To know if your vehicle is equipped with ABS, look for:
an ABS placard.
the ABS logo on the steering wheel.
a yellow ABS malfunction lamps on the instrument panel.
10. When stopping with a tanker, you must be aware that:
a fully loaded vehicle requires a greater stopping distance because it has less traction.
the amount of liquid in the tank has no influence on the stopping distance.
a fully loaded vehicle takes less room to stop than an empty vehicle.
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ID CDL Tanker Test

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