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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. If you are stopped on an incline, how can you start moving without rolling back?
Apply the parking brake
Fully engage the clutch
Shift to neutral
2. Empty vans are:
lower than fully loaded ones.
higher than fully loaded ones.
the same height as fully loaded ones.
3. When driving trucks with trailers, drivers should:
push the brake pedal to the floor when braking.
make quick lane changes.
avoid making sudden movements with the steering wheel.
4. Before entering a curve, you should:
maintain your speed.
increase your speed.
reduce your speed.
5. To prevent rollover, you should:
place the cargo near the rear of the trailer.
keep the cargo as close to the ground as possible.
put the lightest parts of the cargo under the heaviest parts.
6. If a trailer does not have spring brakes, to keep the trailer from moving you should:
use the service brakes.
use wheel chocks.
park on a slight decline.
7. If the engine catches fire, you should:
turn off the engine as soon as you can.
open the hood as soon as you can.
avoid shooting foam from the vehicle's underside.
8. Tire load is defined as:
the minimum safe weight a tire can carry at a specified pressure.
the weight transmitted to the ground by 1 tire.
the maximum safe weight a tire can carry at a specified pressure.
9. Emergency equipment is:
only required when transporting hazardous materials.
10. Which of the following statements about tankers is true?
When loading and unloading smaller tanks, do not put too much weight on the front or rear of the vehicle.
A high center of gravity makes a vehicle more prone to rollover accidents.
All of the above.
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ID CDL Tanker Test

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