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Wisconsin CDL DMV Endorsement Tank 1

Take 10 practice tests for CDL is the best way to prepare for your Wisconsin DMV exam is by taking our free practice tests. The following question are from real Wisconsin DMV practice test. More than 95% people pass a DMV exam when practice at DMV Practice Test.

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1. ____ is a thin layer of ice that forms on road surfaces.
White ice
Black ice
Soft ice
Sharp ice

Black ice is a thin layer of ice that is clear enough for the road surface to be seen through it. A road covered in black ice may look like it is merely wet. You should be very careful when temperatures are below freezing and the road looks wet.

2. Containers of hazardous materials must be:
Packed in larger brown-colored containers.
Braced to prevent movement during transportation.
Made of cardboard.
A maximum of four feet tall.

Containers of hazardous materials must be braced so that they will not fall, slide, or bounce around during transportation.

3. A hazardous material's identification number should appear:
On the transporting vehicle's bumper.
On the material's packaging.
On a sticker near the material's shipping container.

A material's ID number must appear on its accompanying shipping paper as well as on its packaging. It also must appear on cargo tanks and other bulk packaging.

4. If your brakes fail on a downgrade, your best hope to stop is to:
Use an escape ramp.
Use the shoulder.
Drift to a stop.

If your brakes fail on a downgrade, you will have to look outside your vehicle for a way to stop. Using an escape ramp is the safest way to stop your vehicle.

5. A vehicle should be equipped with all of the following, except:
A fire extinguisher.
Spare electrical fuses.
Warning devices for parked vehicles, such as flares.
A spotlight.

Commercial vehicles should always carry the proper emergency equipment. Be sure your vehicle is equipped with at least one fire extinguisher; spare electrical fuses, unless the vehicle is equipped with circuit breakers; and warning devices for parked vehicles, such as warning triangles, fuses, or liquid burning flares.

6. Baffled liquid tanks are:
Tanks that control the surge of liquids with perforated bulkheads.
Tanks that have no bulkheads and allow liquids to move freely.
Tanks that have nothing inside to slow down the flow of liquids.

Baffled liquid tanks contain bulkheads with holes in them that allow the movement of liquid. This helps to inhibit the forward and backward surge of liquids. Baffled liquid tanks do not prevent side-to-side surge and may still allow rollovers.

7. The minimum acceptable tread depth for rear tires is:
1/64 of an inch.
1/32 of an inch.
2/32 of an inch.

When inspecting your tires, verify that there is at least 4/32 of an inch of tread depth in every major groove on the front tires, and tread depth of at least 2/32 of an inch on the other tires. Tires on the same vehicle should all be the same size.

8. When traveling more slowly than 40 mph, maintain at least ____ of following distance per every 10 feet of your vehicle.
One second
Two seconds
Three seconds
Four seconds

At speeds below 40 mph, you should allow at least one second of following distance for every 10 feet of your vehicle. Follow the same formula when traveling at faster speeds, then add one additional second to your following distance. Remember that larger vehicles require more space to stop than smaller vehicles.

9. How many air storage tanks are used in an air brake system?
Two tanks
Four tanks
Six tanks
The number varies.

Air storage tanks are used to hold compressed air. The number and size of air tanks in an air brake system varies among vehicles.

10. When driving, you should stop and take a break ____ to avoid becoming too tired.
Every half hour
Every hour
Every two hours
Every six hours

To reduce the chances of becoming fatigued on a long trip, a driver should stop for a break at least once every two hours or 100 miles driven.

11. If your brakes fail while you are traveling downhill and there is no available escape ramp, you should:
Keep pumping the brakes.
Turn the vehicle off.
Drive into an open field.

If your brakes fail while you are driving downhill, you should first look for an escape ramp to stop your vehicle. If no ramp is available, you should look for an alternative place to bring your vehicle to a stop, such as an open field or side road that flattens out or turns uphill.

12. If you have an engine fire, you should:
Open the hood as soon as possible.
Turn off the engine as soon as possible.
Not use a fire extinguisher.

To keep an engine fire from spreading, you should turn off the vehicle's engine as soon as possible. Do not open the hood if you don't have to.

13. If there is a cargo fire in a box trailer:
The trailer doors should be opened.
The trailer doors should not be opened.
A large, heavy blanket should be put over the trailer.

The doors of a trailer should be not be opened in the event of a cargo fire, especially if the cargo includes hazardous materials. Opening trailer doors would increase the fire's oxygen supply, potentially causing the fire to increase in size.

14. Manhole covers:
May be open when a vehicle is being driven.
Should be closed when a vehicle is being driven.
Should never be used.
Should be removed when a vehicle is being driven.

Be sure to inspect your vehicle before driving. Never drive a tank vehicle with open valves or manhole covers.

15. Distracted driving:
Always comes as a result of physical distraction, not mental distraction.
Can be elevated by pre-programming radio stations.
Can be avoided by eating while driving.
Can be avoided by not engaging in complex conversations while driving.

To reduce the risk of distraction, do not engage in complex or emotionally intense conversations while driving. Pre-programming radio stations before your trip and avoiding eating, drinking, or smoking while at the wheel can also help you avoid becoming distracted while driving. Remember that mental distractions that take your attention away from the task of driving can be just as dangerous as physical distractions.

16. When checking a tank vehicle, it is most important to verify that:
There are no leaks.
There is no frost on the windshield.
The paint is not cracking.
The tires are new.

A tank vehicle has a number of items that must be checked during a pre-trip inspection. Refer to the operator's manual for your specific vehicle to ensure that you are checking the vehicle properly. When inspecting any tank vehicle, it is most important to verify that there are no leaks.

17. When traveling down a hill, you can reduce the amount of required braking by:
Switching into a higher gear.
Switching into a lower gear.
Switching into neutral.

Before starting down a hill, decelerate and shift down into a gear that will allow you to control your vehicle without braking too hard. Using too much brake when driving downhill can cause the brakes to overheat, reducing the braking power.

18. If an aggressive driver is involved in a crash down the road, you should:
Pull over and yell at them.
Stop after the crash scene and report the other driver’s behavior to police.
Block the driver in with your vehicle.

If you observe a crash involving an aggressive driver, you should stop a safe distance from the crash scene, wait for police to arrive, and inform them of the aggressive behavior you witnessed.

19. Brake linings should be:
Free of oil.

Brake linings should not be loose or soaked with oil or grease. They shouldn't be dangerously thin.

20. When stopping:
The brake pedal should be pressed down gradually.
The brake pedal should be pushed down quickly.
The brake pedal should be pressed down repeatedly, but not held down continuously.
The amount of force required on the brake pedal will be the same each time you slow or stop.

Press the brake pedal down smoothly and gradually every time you slow or stop. The amount of brake pressure you need to apply depends on the speed of your vehicle and how quickly you need to stop.

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