Instructions

Knowledge Test Class A

This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has three or four possible answer choices. Test questions come from the Arkansas Commercial Driver License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination, Doubles and Hazardous Materials. Endorsements that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.

Number of Question 50

Passing Score 40

1. A thin layer of ice that forms on road surfaces is called:

White ice.

Black ice.

Green ice.

Blue 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. Which of the following is an indication of standing water on the roadway?

Tire splashes

Portions of the pavement that are dry

Leaves on the road

Hydroplaning can occur in places where water collects on the road. Clear reflections, tire splashes, or rain drops on the road can indicate the presence of standing water.

3. If you plan to transport hazardous materials, you must pass which endorsement test?

Tank

Hazardous materials

Passengers

You must have a hazardous materials endorsement to drive a vehicle of any size that is used to transport defined classes of hazardous materials.

4. You should cover cargo:

To protect the cargo from thieves.

To protect the cargo from weather.

To prevent other drivers from looking at what is being transported.

To keep the cargo a secret.

You should cover your cargo to protect people from the cargo if it spills, as well as to protect the cargo from the weather.

5. When turning, when should the turn signal be canceled?

Before entering the turn

During the turn

After the turn is completed

Always signal continuously through a turn. Do not cancel a signal until the turn is finished.

6. The air storage tanks:

Hold only enough air for one braking cycle.

Hold enough air for the brakes to be used several times if the compressor stops working.

Do not hold air unless there is an emergency.

The air storage tanks in an air brake system store compressed air to be used for braking. They hold enough air for the brakes to still be used several times if the compressor stops working.