Tank Endorsement Test | Idaho 2025 #2

Train for FREE with our Idaho tank endorsement practice test online. 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 tank license in 2025, 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 DMV requirements for issuing a CDL tank vehicle endorsement may vary from state to state.

Number of Question 20

Passing Score 16

Number of Tests 20

1 . When a vehicle is started, the coolant temperature should:

Decrease.

Rise slowly.

Jump quickly.

After an engine is started, the coolant temperature should rise gradually to a normal operating range.

2 . When loading compressed gas, the liquid discharge valves should be:

Closed.

Greased.

Opened.

Keep liquid discharge valves on a compressed gas tank closed except when loading and unloading.

3 . If an unusual noise or feeling occurs in a vehicle while it is being driven, the driver should:

Assume it is not a concern and continue driving.

Hope the vehicle does alright until it is switched to another driver.

Check the situation to determine the proper solution.

If you see, hear, smell, or feel anything while driving that does not feel right, you should have it checked out.

4 . When leaving your vehicle:

The air brakes should be applied.

The parking brake should be applied.

Brakes should not be applied if the vehicle is left out of gear.

Parking brakes should be used whenever you park. If necessary, chock your wheels.

5 . How much water must be present for a vehicle to hydroplane?

Usually several inches

A good amount, such as a large puddle

A small amount

Hydroplaning is an effect in which a vehicle's tires lose traction with the surface of the road and instead glide along a layer of water. There does not have to be much water on the road for this to occur.

6 . Which of the following is acceptable if found during a pre-trip inspection?

Tires of mismatched sizes

Tread of 3/32 of an inch in the grooves of the front tires

Tires manufactured by different makers

When checking the tires as part of a pre-trip inspection, make sure the tires have sufficient tread. There should be at least 4/32 of an inch of tread in every major groove of the front tires, and at least 2/32 of an inch of tread depth on the other tires. Tire sizes should not be mismatched.

7 . When you are behind the steering wheel, shipping papers should be:

Within reach.

In the sleeping compartment.

Hidden under the seat.

When transporting hazardous materials, shipping papers should be kept in a pouch in the driver's side door, or in another location where the driver is able to easily reach them while their seat belt is fastened. The papers must be easily visible to anyone who is entering the cab.

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2025 Idaho | Frequently Asked Questions

To secure a CDL Bus endorsement in Idaho, you must first have a Commercial Driver's License (CDL). Next, you'll need to pass a passenger endorsement test covering topics like vehicle inspection, loading/unloading passengers, and emergency procedures. You also need to pass a skills test in a vehicle similar to the one you'll be driving. Check with the Idaho Transportation Department for more details.

To obtain a CDL Bus license in Idaho, you need to have a valid driver's license, pass a physical examination, and complete a CDL training course. Afterward, you'll take a written knowledge test and a skills test, which includes pre-trip vehicle inspection, basic vehicle control, and on-road driving. You also need to pass the Passenger Endorsement test for bus drivers.

Yes, training is necessary for a CDL Bus endorsement in Idaho. You must complete a CDL training course that includes both classroom instruction and behind-the-wheel training. After the course, you'll need to pass a written knowledge test and a skills test. Some employers may also require previous driving experience. Check with the Idaho Transportation Department for specific requirements.

CDL Bus licenses in Idaho are categorized into three classes based on the vehicle's size and purpose: Class A, B, and C. Class A is for vehicles over 26,001 pounds or towing over 10,000 pounds. Class B is for vehicles over 26,001 pounds or towing vehicles less than 10,000 pounds. Class C is for transporting 16 or more passengers (including driver) or hazardous materials.

No, you cannot use your personal vehicle for the CDL Bus driving test in Idaho. The vehicle you use for the test must match the class and type of vehicle you plan to drive with your CDL. Therefore, you must use a commercial bus for your bus endorsement driving test. This ensures that you can handle the size and complexity of such vehicles.

During the CDL Bus driving test in Idaho, examiners assess your ability to safely operate a commercial bus. Skills evaluated include pre-trip vehicle inspection, basic vehicle control (like turning, stopping, and backing up), and on-road driving (like lane changes, intersections, and highway driving). You'll also be tested on specific bus operations like loading/unloading passengers, railroad crossing procedures, and emergency exit procedures.

Yes, to obtain a CDL Bus endorsement in Idaho, you must meet specific medical requirements. You're required to pass a Department of Transportation (DOT) physical examination every 24 months to ensure you're physically capable of safe driving. The exam covers vision, hearing, blood pressure, and checks for conditions like diabetes or epilepsy that could interfere with driving safety.

No, it is not permissible to transport passengers without a valid CDL Bus endorsement in Idaho. The law requires any driver operating a commercial vehicle designed to carry 16 or more passengers, including the driver, to hold a valid Commercial Driver's License (CDL) with a Passenger (P) endorsement. Operating without this could lead to serious legal consequences.

Yes, the CDL Bus endorsement can be added to your existing CDL. In Idaho, you don't need to apply for a new license. However, you're required to pass the passenger transport test, and in some cases, a driving skills test in the type of vehicle you will be driving. Once you pass, the endorsement is added to your CDL.

Yes, drivers with a CDL Bus endorsement in Idaho must adhere to certain restrictions. They must not have more than one serious traffic violation in three years, and must not have any DUI convictions in the past five years. Additionally, they must pass the required knowledge and skills tests, maintain a clean driving record, and meet physical qualification standards.