Combination #2

Combination Vehicles Practice Test | Washington 2026 #2

Train for FREE online with our Washington 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 WA combination license in 2026, practice as much as..

Train for FREE online with our Washington 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 WA 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.

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1 . When coupling, after you've connected the air lines to the trailer, you should:

Correctly following the steps to couple and uncouple trailers is vital to safely operating a combination vehicle. After connecting the air lines to the trailer while coupling, you should supply air to the trailer.

2 . If the emergency air line loses pressure:

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.

3 . The best way to recognize that your trailer has started to skid is by:

The easiest way to become aware that your trailer has begun to jackknife is to observe it in your mirrors. Checking your trailer in your mirrors will also allow you to spot any skidding at the earliest possible moment.

4 . A driver should test the tractor protection valve by:

You should test the tractor protection valve by allowing the air supply to properly charge, turning off the engine, then releasing air from the system by pressing the brake pedal several times. The tractor protection valve should move into its emergency position when psi drops to an unsafe level.

5 . The trailer hand valve should be used:

The trailer hand valve (also referred to as the "trolley valve" or "Johnson bar") works the trailer brakes and should be used only when testing them. Using the trailer hand valve while driving could result in a skid.

6 . If a trailer begins to jackknife, the driver:

If a trailer begins to jackknife, you should release the brakes and allow the trailer wheels to regain traction with the road. Do not apply the trailer hand brake to attempt to straighten out the rig because the application of brakes is what caused the wheels to lock in the first place.

7 . How much space should be between the upper and lower fifth wheel?

Before a trip, be sure to inspect all couplings. There should be no space between the upper and lower fifth wheel.

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2026 Washington | Frequently Asked Questions

A CDL Class A license in Washington is defined as a commercial driver's license that allows the holder to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, given that the GVWR of the vehicle(s) being towed is in excess of 10,000 pounds.
A Class A Commercial Driver's License (CDL) in Washington allows the holder to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, provided the GVWR of the vehicle(s) being towed exceeds 10,000 pounds. This includes but is not limited to tractor-trailers, truck and trailer combinations, and tank vehicles.
To obtain a Class A CDL license in Washington, you must be at least 18 years old (21 for interstate driving), possess a valid Washington state driver's license, pass a vision test, and pass knowledge and skills tests. You'll also need to provide proof of U.S. citizenship or lawful permanent residency, and meet medical requirements.
In Washington, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate driving (within Washington only). However, federal regulations require drivers to be at least 21 years old to drive a commercial vehicle interstate (across state lines) or to haul hazardous materials.
While not always required, specific endorsements may be necessary for a Class A CDL license depending on the type of vehicle you'll operate or cargo you'll carry. These can include endorsements for double/triple trailers, tanker vehicles, passenger vehicles, or hazardous materials. Each endorsement requires additional knowledge tests and sometimes a skills test.
The Class A CDL skills test in Washington encompasses three parts: the pre-trip inspection, basic vehicle controls, and on-road driving. The pre-trip inspection checks your ability to assess your vehicle's safety. Basic vehicle controls assess your ability to maneuver and control the vehicle. The on-road driving test evaluates your driving skills in various traffic situations.
Yes, Class A CDL license holders in Washington may face limitations based on their specific endorsements and restrictions. For instance, without the proper endorsements, they cannot operate vehicles with air brakes, transport passengers, or haul hazardous materials. Additionally, restrictions may be placed on licenses due to medical conditions or lack of skills.
Yes, it is possible to take the written Class A CDL test in languages other than English in Washington. The Department of Licensing offers the test in several languages. However, federal regulations require anyone applying for a commercial driver license (CDL) to understand and read English to ensure safety on the roads.
Yes, you can request accommodations for the Class A CDL written test if you have a disability. Washington's Department of Licensing is committed to providing equal access to its services. If you have special needs, contact your local driver licensing office to discuss your situation and determine what accommodations can be made.
If you don't pass the Class A CDL written test in Washington, you can retake it. However, you must wait at least one day before retaking the test. Keep in mind that there may be additional fees for each attempt. It's advisable to study thoroughly before retaking the test to increase your chances of passing.

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