Combination #2
Combination Vehicles Practice Test | Washington 2024 #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 2024, 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.
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2024 Washington | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in Washington, you must first possess a valid CDL. Then, you should study the Doubles and Triples section of the Washington CDL Handbook. After studying, schedule and pass the written knowledge test at a Washington Department of Licensing office. Lastly, pay the required endorsement fee to add it to your license.
To obtain a CDL Doubles/Triples license, you must first have a basic CDL. You will then need to study for and pass the Doubles/Triples endorsement test, which covers specific knowledge related to driving these types of vehicles. This includes understanding the handling and safety procedures. Finally, you'll pay any required fees for the additional endorsement on your license.
While formal experience isn't required for a CDL Doubles/Triples endorsement, you must possess a valid Commercial Driver's License (CDL). It's recommended to study the CDL manual and take practice tests. Understanding coupling/uncoupling, inspecting doubles/triples, and checking air brakes is essential. Passing the Doubles/Triples endorsement knowledge test is the final step.
Yes, to obtain a CDL Doubles/Triples endorsement, you must pass the Doubles/Triples endorsement knowledge test. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and checking air brakes. There is no additional driving skills test required beyond the standard CDL exam.
The CDL Doubles/Triples endorsement test primarily focuses on knowledge rather than specific driving maneuvers. You'll need to understand coupling and uncoupling, inspecting doubles and triples, and managing the high risk of rollover. Additionally, you'll need to know about pulling double/triple trailers, as well as the implications of crashes. The test is written, not practical, so no driving skills are showcased.
No, it is not permissible. In Washington, like in all states, a valid CDL Doubles/Triples endorsement is required to legally operate double or triple trailers. Driving these vehicles without the necessary endorsement can lead to serious penalties including fines and suspension of your commercial driving license.
You can append the Doubles/Triples endorsement to your existing CDL. You don't need to initiate a new application for a CDL. However, you must pass the Doubles/Triples knowledge test. Once you pass, the endorsement is added to your CDL, allowing you to legally operate double and triple trailers.
Yes, there are limitations for drivers with a CDL Doubles/Triples endorsement. They can only operate double or triple trailers. Also, these drivers must comply with all federal and state regulations regarding commercial vehicle operation, including weight limits, logbook rules, and safety inspections. Any violation can lead to penalties or revocation of the endorsement.
In Washington State, double trailers can't exceed a combined length of 61 feet and triple trailers can't exceed 75 feet. As for weight, the maximum gross vehicle weight (including all axles) is 105,500 pounds. However, individual axle weights can't exceed limits set by federal bridge laws. Always check specific state and federal regulations.
Yes, there are specific safety guidelines and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement in Washington. These include maintaining proper spacing between trailers, using proper turning techniques, and adhering to weight restrictions. It is important to follow these guidelines to ensure the safe operation of double/triple trailers on the road.
