Class A Driving Test | Idaho 2026 #2

Train for FREE online with our Idaho class A license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a ID CDL class A permit in 2026, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class A requirements may vary from state to state.

Number of Question 50

Passing Score 40

Number of Tests 20

1 . When approaching a vehicle for a pre-trip inspection, a driver should look under the vehicle:

To see if the vehicle is on an incline.

To see if there are any fresh fluids on the ground.

To see if the vehicle is in a parking spot.

When approaching your vehicle before an inspection, make note of its general condition and ensure that it is not damaged or leaning. Look under the vehicle for fresh leaks of oil, grease, or fuel. Check around the vehicle for hazards to movement, such as people, other vehicles, or low-hanging wires or tree limbs.

2 . When loading a trailer, it is important to:

Place as little weight as possible over the axles.

Place a well-balanced amount of weight over the axles.

Place weight over only the axles.

A load of cargo must be properly balanced. Placing too much weight over an axle can damage the axle and make it more difficult for you to steer. Placing too little weight over an axle can cause poor traction, also leading to difficult handling.

3 . How many daily hours of sleep does an adult need to maintain alertness?

Six to seven

Seven to eight

Eight to nine

Four to five

Being properly rested is essential to the safe operation of a CMV. To maintain alertness, most people need eight to nine hours of sleep per night.

4 . After a tire has been changed, the driver should stop after a short distance to:

Check the tightness of the lug nuts.

Ensure that the tire has remained clean.

Inflate the new tire.

After changing a tire, you should stop a short distance later to recheck the tightness of the tire's lug nuts.

5 . A second conviction of operating a CMV with a blood alcohol content (BAC) of 0.04 percent or more will result in:

The loss of your CDL for one year.

The loss of your CDL for five years.

The loss of your CDL for life.

A first conviction of operating a CMV with a blood alcohol content (BAC) of 0.04 percent or higher will result in the loss of your CDL for one year. A second conviction of operating a CMV with a minimum BAC of 0.04 percent will result in the loss of your CDL for life.

6 . An Anti-Lock Braking System (ABS):

Is not available for most trucks.

Is not helpful in most situations.

Is required on newer trucks.

Beginning between 1997 and 1999, most commercial vehicles, trailers, and dollies are required to be equipped with ABS.

7 . The parking brake in a newer vehicle is applied by:

Moving a lever to the right.

Pushing a yellow, diamond-shaped knob.

Pulling a yellow, diamond-shaped knob.

In newer vehicles with air brakes, the parking brake is controlled by a yellow, diamond-shaped knob. The driver should pull the knob outward to apply the parking brakes and push the knob inward to release them.

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2026 Idaho | Frequently Asked Questions

To acquire a CDL Tank endorsement in Idaho, you must have a valid Idaho CDL. You'll need to pass the Tank Vehicle written test administered by the Idaho Transportation Department. Study the CDL manual's section on tank vehicles. After passing the test, pay the required endorsement fee to add it to your CDL.

To obtain a CDL Tank license, it's essential to have a valid Commercial Driver's License (CDL). You must pass the Tank Vehicle written test, which covers the specific knowledge needed to operate tank vehicles safely. Studying the tank vehicle section in the CDL manual is crucial for passing this test. Lastly, pay the endorsement fee.

While specific training or experience isn't legally mandatory for a CDL Tank endorsement in Idaho, it's highly recommended. Understanding how to handle large, liquid-filled tanks is crucial for safety. Studying the tank vehicle section of the CDL manual and practical experience driving tank vehicles can significantly increase your chances of passing the Tank Vehicle written test.

Yes, obtaining a CDL Tank endorsement in Idaho requires passing an additional written test. This test focuses on the knowledge necessary to safely operate tank vehicles. It covers topics like high center of gravity, surge, bulkheads, baffles, and safe driving rules. The information for this test is found in the tank vehicles section of the Idaho CDL manual.

The written test for a CDL Tank endorsement covers a range of topics related to tank vehicles. These include inspecting tank vehicles, driving tank vehicles, and understanding the unique handling characteristics of tankers. It also covers safety rules, such as managing the vehicle's center of gravity and dealing with surge.

The CDL Tank endorsement written test in Idaho doesn't assess specific driving skills or maneuvers. It is a knowledge-based test focusing on understanding specific rules and safety measures for tank vehicles. Topics include the vehicle's high center of gravity, handling surge, understanding bulkheads and baffles, and adhering to safe driving rules. Practical skills are assessed separately in the general CDL driving test.

Yes, drivers with a CDL Tank endorsement face certain limitations. They can only operate commercial vehicles designed to transport liquids or gaseous materials within a tank that is permanently or temporarily attached to the vehicle. They are also required to comply with specific safety standards and procedures, such as handling hazardous materials and managing high center of gravity and surge.

No, you cannot legally transport liquid or gas materials in a commercial vehicle without a valid CDL Tank endorsement in Idaho. This endorsement is specifically designed to ensure that drivers have the necessary knowledge and skills to safely handle such materials. Driving without the appropriate endorsement can result in significant fines and penalties.

In Idaho, you can add the CDL Tank endorsement to your current license. You will need to pass the Tanker Knowledge Test and pay an additional fee. No fresh application is necessary. Remember to meet all the requirements and provide the necessary documents when applying for the endorsement.

Yes, handling hazardous materials with a CDL Tank endorsement requires adherence to specific regulations. Drivers must pass the Hazardous Materials (HazMat) endorsement knowledge test, and undergo a TSA background check. They must also follow safety procedures for loading, unloading, and transporting hazardous materials, and be aware of emergency response procedures.