Instructions

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 chassis. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. Each question has three possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Missouri Commercial Driver’s Manual. Questions come from chapters covering: Driving Safely, Tank Vehicles, Hazardous Materials and Combination Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.

Number of Question 20

Passing Score 16

1. When starting a vehicle, warning lights and buzzers:

Should not light up or sound.

Should turn on and shut off quickly.

Should turn on and remain on.

After starting a vehicle's engine, the warning lights and buzzers should turn on, then quickly turn off.

2. Scan the road ____ ahead of your vehicle.

Two to three seconds

Five to six seconds

12 to 15 seconds

Good drivers scan the road at least 12 to 15 seconds ahead of their vehicles. Looking ahead will allow you to identify and react to hazards before meeting them. Be sure to specifically look for vehicles that are coming onto the highway, entering into your lane, or turning.

3. When drivers turn, they usually:

Look in the direction of the turn.

Look in the direction opposite the turn.

Look behind their vehicles.

When turning, drivers usually look in the direction of their turn. If a driver fails to signal before a turn or lane change, their body movements may still provide a clue that they are planning to turn.

4. After a vehicle is started, warning lights and buzzers:

Should stay on for several minutes.

Should turn off within a few seconds.

Should stay on until manually turned off.

After a vehicle is started, the warning lights and buzzers should go out after a few seconds. If the warning signals do not turn off, there may be something wrong with the vehicle.

5. On a slippery road, a driver should:

Make turns as quickly as possible.

Refrain from passing slower vehicles.

Stop quickly.

Under slippery conditions, you should drive slowly and smoothly. Make turns as gently as possible and do not pass other vehicles unless you have to.

6. If unable to tell if the road is becoming icy and slippery, a driver:

Should try guessing.

May open their window and feel the front of the side mirror for ice.

Should look at the road closely.

If you think the road surface may be becoming icy but you are not certain, you can open your window and feel the front of the side mirror, mirror support, or antenna. If ice has formed on any of these items, the road is likely becoming icy as well.