Combination #2
Combination Vehicles Practice Test | Washington 2025 #2 Page 3 of 3
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 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 combination license may vary from state to state.
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15 . What does an Anti-Lock Braking System (ABS) do?
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.
16 . Older trailers are not equipped with spring brakes. This means that if the air supply for a vehicle's air braking system leaks away:
Older trailers do not have spring brakes. This means that if the air supply in an older trailer's air tank has leaked away, there will be no working brakes connected to the trailer and its wheels will turn freely.
17 . All trailers made after ____ must be equipped with Anti-Lock Braking Systems (ABS).
All trailers and converter dollies manufactured on or after March 1, 1998 must have Anti-Lock Braking Systems (ABS).
18 . In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when air pressure drops to a level between:
In vehicles equipped with an automatic tractor protection valve, the valve will pop out if air pressure drops to a level between 20 and 45 psi. When the valve pops out, the protection valve will close, stopping the flow of air.
19 . When backing up your tractor while coupling it to a trailer, the trailer brakes should be:
Correctly following the steps to couple and uncouple trailers is vital to safely operating a combination vehicle. Before backing your tractor under the trailer while coupling, make sure your trailer brakes are locked.
20 . A trailer that is too high:
Before coupling together a tractor and a trailer, you should make sure the trailer is at the proper height. If the trailer is too low, the trailer nose may be damaged. If the trailer is too high, it may not be able to couple correctly.
See the exact questions that will be on the 2025 Washington DMV exam.
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2025 Washington | Frequently Asked Questions
To secure a CDL Bus endorsement in Washington, you must first hold a valid CDL. Then, pass the passenger vehicles test and the school bus endorsement test. Also, complete a federal background check and submit a medical examiner's certificate. Lastly, successfully complete a driving skills test in the type of bus you wish to drive.
To obtain a CDL Bus license, you need to have a valid driver's license, pass a physical examination, and complete a CDL training course. Afterwards, you'll need to pass the written knowledge test and the practical skills test. It's also necessary to pass additional tests for any endorsements, such as passenger or school bus operations.
Yes, specific training is necessary for a CDL Bus endorsement. You must pass the Passenger Endorsement and School Bus Endorsement knowledge tests. Additionally, you need to take a driving skills test in the type of vehicle you plan to drive. Training courses are available and often recommended to prepare for these tests and gain practical skills.
CDL Bus licenses fall under three classifications: Class A, B, and C. Class A is for any combination of vehicles with a combined GVWR of 26,001 or more pounds. Class B is for single vehicles weighing 26,001 or more pounds, or any vehicle towing another not over 10,000 pounds. Class C is for vehicles designed to transport 16 or more passengers (including the driver), or hazardous material vehicles.
No, you cannot use your personal vehicle for the CDL Bus driving test. The test must be taken in the same type of vehicle for which you are trying to get a license. Therefore, you need to use a commercial bus for the CDL Bus driving test. This ensures that you can handle and operate a bus safely and effectively.
During the CDL Bus driving test, examiners evaluate your ability to perform pre-trip inspections, basic vehicle control, and on-road driving. This includes skills like backing up, parallel parking, docking in a bay, and making proper turns. They also assess your understanding of traffic rules, ability to handle emergency situations, and how you interact with passengers.
Yes, there are additional medical and physical prerequisites for a CDL Bus endorsement. You need to pass a Department of Transportation (DOT) physical examination every 24 months. The examination evaluates your vision, hearing, blood pressure, and checks for conditions like diabetes or epilepsy that might impair your driving ability.
No, it is not permissible to transport passengers without a valid CDL Bus endorsement. Driving a commercial bus without the appropriate CDL endorsement is illegal and can result in fines, license suspension, or even imprisonment. It's important to have the correct endorsements to ensure safety and compliance with transportation laws.
Yes, the CDL Bus endorsement can be added to your existing CDL. You don't need to apply for a new license, but you will need to pass the Passenger Vehicles written test and the skills test in the type of vehicle you plan to drive. The endorsement is then added to your CDL.
Yes, there are restrictions for drivers with a CDL Bus endorsement. Drivers must not have any serious traffic violations, they must pass a background check, and meet physical and medical standards. Additionally, they are subjected to random drug and alcohol testing. Drivers are also limited to the type and number of passengers their specific endorsement allows.
