Combination Vehicles Practice Test | Wyoming 2026 #1

Train for FREE online with our Wyoming CDL combination vehicle 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 WY combination license 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 DMV requirements for issuing a combination license may vary from state to state.

Number of Question 20

Passing Score 16

Number of Tests 20

1 . What does an Anti-Lock Braking System (ABS) do?

It allows a vehicle's wheels to lock up.

It prevents a vehicle's wheels from locking up.

It makes turning a vehicle easier.

An Anti-Lock Braking System (ABS) helps prevent wheel lockup during hard braking. If ABS detects impending lockup, it reduces braking pressure to a safe level.

2 . What does the trailer air supply control look like?

It is a square blue knob.

It is a triangular yellow knob.

It is an eight-sided red knob.

It is a circular orange knob.

On newer vehicles, the trailer air supply control is an eight-sided red knob. It's used to control the tractor protection valve.

3 . When driving a combination rig, following distance should be:

Decreased in poor weather.

Shorter than when driving a single vehicle.

About the same as when driving a single vehicle.

Longer than when driving a single vehicle.

In comparison to driving a single vehicle, you should maintain an extended following distance when driving a combination rig. Combinations require longer stopping distances than smaller vehicles.

4 . When driving a trailer with ABS, you should:

Not depress the brakes as much as you would when driving a vehicle without ABS.

Use extra braking force to ensure the ABS kicks in.

Brake as you would when driving a vehicle without ABS.

Try to not brakes as often as you would when driving a vehicle without ABS.

When driving a tractor-trailer combination equipped with an Anti-Lock Braking System (ABS), you should brake in the same manner that you would if operating a vehicle without ABS.

5 . Using the trailer hand brake while experiencing a trailer jackknife will:

Stop the skid.

Straighten the trailer.

Increase traction.

Continue the skid.

If you are experiencing a trailer jackknife, you can help your tires regain traction by releasing the brakes. Using a trailer hand brake while experiencing a skid will only cause the skid to continue.

6 . If the emergency air line loses pressure:

The service brakes will activate.

The tractor protection valve will close.

The rear trailer will detach from the combination.

The tractor protection valve keeps air in the trailer's braking system should the trailer break away or develop a leak. A loss of air pressure in the emergency line will cause the tractor protection valve to open and the emergency trailer brakes to activate.

7 . Before a drive, ensure that air flows to all trailers by:

Opening the rear shut-off valves and listening for escaping air.

Closing the rear shut-off valves and listening for escaping air.

Disconnecting air supply lines and listening for escaping air.

Rolling each trailer down a hill and testing the brakes.

Before a trip, ensure that air in the air brake system reaches all trailers. Do this by waiting for air pressure to build, then sending air to both the emergency and service lines and opening the shut-off valves on the rear of the last trailer. If air escapes from the shut-off valves in the rear of the combination, the air is being supplied to the entire vehicle.

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2026 Wyoming | Frequently Asked Questions

To acquire a CDL Passenger endorsement in Wyoming, you must first have a commercial driver's license (CDL). You then need to pass a written knowledge test on transporting passengers, and a skills test in a vehicle similar to the one you'll be driving. Additional requirements may include passing a background check and medical examination.

To obtain a CDL Passenger license, you must have a valid Commercial Driver's License (CDL). You should then pass a written passenger endorsement test and a skills test in the type of vehicle you'll be driving. You may also need to complete a background check, provide proof of physical health via a medical examination, and meet age requirements.

While Wyoming doesn't specifically mandate training or experience to secure a CDL Passenger endorsement, it's beneficial to have practical experience or training. This helps you pass the written knowledge test and skills test. The tests cover topics like inspecting passenger vehicles, loading and trip start procedures, on-the-road driving, and after-trip vehicle inspections.

Yes, to get a CDL Passenger endorsement in Wyoming, you must pass a written knowledge test that covers the specifics of driving a passenger vehicle. This includes topics like vehicle inspection, loading/unloading passengers, emergency procedures, and more. After passing the written test, you'll also need to pass a skills test in a passenger vehicle.

During the CDL Passenger endorsement skills test in Wyoming, you'll need to showcase your ability to inspect the vehicle, load and unload passengers safely, manage emergency situations, and operate a passenger vehicle on the road. You'll also be evaluated on your driving skills including stopping, turning, backing up, and navigating through traffic.

No, you cannot legally transport passengers in Wyoming without a valid CDL Passenger endorsement. This endorsement is required for drivers who wish to operate a vehicle designed to carry 16 or more passengers, including the driver. Driving without the proper license or endorsement can result in significant penalties, including fines and suspension of your driving privileges.

Yes, you can add the CDL Passenger endorsement to your existing commercial driver's license in Wyoming. You don't need a new application, but you will need to pass the passenger transport knowledge test and skills test. Once you pass these tests, the endorsement will be added to your current CDL.

Yes, there are limitations and restrictions for drivers with a CDL Passenger endorsement in Wyoming. They are not allowed to operate a commercial vehicle that carries more than 16 passengers (including the driver) and they cannot drive a school bus carrying students. Additionally, drivers with a CDL Passenger endorsement must have a valid medical certificate and comply with all other CDL requirements.

Yes, there are age-related prerequisites for acquiring the CDL Passenger endorsement in Wyoming. You must be at least 21 years old to drive a commercial vehicle across state lines (interstate) or to carry hazardous materials. However, you can get a CDL to drive within Wyoming (intrastate) at age 18.

With a CDL Passenger endorsement in Wyoming, you will be eligible to operate commercial vehicles designed to carry 16 or more passengers, including the driver. This includes buses, shuttles, and large vans. However, it does not include school buses, for which you would need a separate School Bus endorsement.