Tank

This endorsement is required to haul any liquid or gaseous materials in a tank or tanks having a capacity of 1,000 gallons or more that is either permanently or temporarily attached to the vehicle or.. Read More

This endorsement is required to haul any liquid or gaseous materials in a tank or tanks having a capacity of 1,000 gallons or more that is either permanently or temporarily attached to the vehicle or chassis. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. Each question has four answer choices. To pass, the applicant must answer at least 16questions correctly. Test questions come from the Michigan Commercial Driver License Manual. Questions come from chapters covering: Driving Safely, Combination Vehicles, Doubles and Triples, Tank and Hazardous Materials. The Tank endorsement can be used with the Class A, B or C CDL.

Number of Question
Passing Score

8. When entering a curve, you should:

Explanation
You should always slow down to a safe speed and shift into a lower gear before entering a curve.

9. Of the following, which is the most slippery surface?

Explanation
Ice becomes wet when the weather is just warm enough to melt the ice slightly. Wet ice is much more slippery than ice that is not wet.

10. A fatigued driver:

Explanation
Fatigued drivers are slower to see or react to hazards than drivers who are not fatigued. Drivers are impaired in their ability to make critical decisions when they are driving drowsy.

11. What is brake lag?

Explanation
Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work.

12. Which of the following is not a warning sign of fatigue?

Explanation
Potential warning signs of fatigue include difficulty focusing, frequent blinking, or heavy eyelids; yawning repeatedly or rubbing your eyes; daydreaming; wandering or disconnected thoughts; trouble remembering the last few miles you've driven; missing exits or traffic signs; having trouble keeping your head up; drifting from your lane; following too closely; hitting a shoulder rumble strip; or feeling restless and irritable.

13. When coming to a stop, the liquid in a tank may surge. This can:

Explanation
When liquid surges in a tank that is partially filled, the truck tends to be pushed in the direction of the wave. If a truck is being stopped on a slippery surface, the surge may push it forward into an intersection or another vehicle.

14. When inspecting the windshield before a trip, a person should do all the following, except:

Explanation
When inspecting your windshield, you should look for cracks or other problems that could interfere with your ability to clearly see the road. The windshield wiper arms should be checked for proper spring tension. The wiper blades should be checked for damage, stiff rubber, and improper securement.
DMV Writen Test Logo