Knowledge Test Class B #2
Class B Driving Test | Alaska 2026 #2 Page 4 of 7
Train for FREE online with our Alaska class B license 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 AK CDL class B permit 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 CDL class B requirements may vary from state to state.
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22 . During the vehicle inspection test, you will be asked to:
During the vehicle inspection test, you will be asked to do a complete inspection of your vehicle. You will need to explain what you are inspecting and why.
23 . When driving a vehicle, rough acceleration is:
When accelerating, speed up smoothly and gradually so your vehicle does not jerk. Rough acceleration can cause mechanical damage.
24 . If traveling at 55 mph on dry pavement, your minimum braking distance will be close to:
Your vehicle's stopping distance can be calculated by adding together your perception distance, your reaction distance, and your vehicle's braking distance. When traveling on dry pavement with brakes that are in good condition, your braking distance will be about 216 feet.
25 . What happens when a vehicle hydroplanes?
On a wet road, it is possible for a vehicle's tires to lose traction with the road surface and begin to glide along on the layer of water. This is referred to as hydroplaning. Hydroplaning can occur at speeds as low as 30 mph.
26 . When taking a driving test:
Skills tests must be taken in the type of vehicle the applicant plans to drive. The applicant is generally responsible to supply the testing vehicle.
27 . The two markings on a front brake limiting valve usually read:
Some vehicles with air brake systems manufactured before 1975 have a front brake limiting valve with "normal" and "slippery" settings.
28 . If your wheels being to spin when accelerating on a poor traction surface, you should:
If your drive wheels begin to spin while accelerating on a surface with poor traction, you should remove your foot from the accelerator.
2026 Alaska | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in Alaska, you must first have a Commercial Driver's License (CDL). Then, study the Alaska CDL Manual section on Doubles and Triples. After studying, take the written knowledge test at any DMV office. Once you pass, you'll get your endorsement. Remember, you must also pass a TSA background check.
To obtain a CDL Doubles/Triples license, you need to have a basic Commercial Driver's License (CDL). Then, study for the Doubles/Triples endorsement test using your state's CDL manual. Once prepared, schedule and pass the written test at your local DMV. You must also successfully complete a TSA background check to receive the endorsement.
While no specific specialized experience or training is legally required for a CDL Doubles/Triples endorsement, it's highly recommended to study the relevant sections in the CDL manual. This ensures that you understand the safety regulations and operating procedures for these larger vehicles. Some drivers also opt for professional training courses to gain practical experience.
Yes, to obtain a CDL Doubles/Triples endorsement, you must pass the Doubles/Triples Endorsement Knowledge Test. This written exam covers specific topics related to operating a vehicle with double or triple trailers. It's crucial to prepare for this test, often through studying a CDL manual or taking a preparatory course. Once you pass the test, you can add the endorsement to your CDL.
The CDL Doubles/Triples endorsement test is typically a written test, not a skills test. It focuses on knowledge rather than physical maneuvers. You'll need to understand coupling and uncoupling, inspecting doubles and triples, and managing the vehicles on the road. However, gaining practical experience with these skills is beneficial for real-world application.
No, it is not permissible. Operating double or triple trailers requires a specific set of skills and knowledge for safe driving. Therefore, drivers are required to have a Commercial Driver's License (CDL) with a Doubles/Triples endorsement. Driving without the appropriate license or endorsement can lead to legal penalties, including fines and potential suspension of your driving privileges.
You can add the CDL Doubles/Triples endorsement to your existing commercial driver's license. You don't need to start a new application for a fresh license. However, you will need to pass the required written knowledge test for the Doubles/Triples endorsement and pay the applicable fees to have it added to your current CDL.
Yes, there are limitations. If you have a CDL Doubles/Triples endorsement, you're only allowed to operate vehicles that are double or triple trailers. You cannot operate other types of commercial vehicles unless you have the appropriate endorsements. Additionally, you must follow all federal and state regulations regarding maximum weight and length of your combined trailers.
The maximum weight for double/triple trailers varies by state and type of roadway, but generally, it's up to 80,000 pounds. The maximum length for each trailer is typically 28.5 feet for doubles and 28 feet for triples. However, the total length can't exceed 75 feet in most states. You should check with Alaska's specific regulations for the most accurate information.
Yes, there are specific safety guidelines for driving double/triple trailers. These include proper coupling and uncoupling of trailers, checking the coupling system regularly during a trip, maintaining safe following distances, and understanding the high rollover risk. Drivers must also comply with speed limits, weight restrictions and ensure they have the correct endorsement on their CDL.