Knowledge Test Class B #1
Class B Driving Test | Alaska 2026 #1 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 . If planning to back a vehicle where there may be overhanging objects, a driver should:
Because you can't see everything behind you, driving in reverse is always dangerous and should be done only when necessary. Before backing into an area, you should exit your vehicle and inspect the path of travel to check for potential hazards, especially overhanging objects that would otherwise be difficult to spot in a mirror.
23 . A low air pressure warning signal should activate:
When tank pressure falls below 5 psi.
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 55 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
24 . In the case of an engine fire, you should not:
In the event of an engine fire, turn off the engine as soon as possible. Do not open the hood if you can avoid doing so.
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 . Black ice is:
Black ice is a layer of ice that is thin and clear enough for the road to be visible through it. The surface will look like a wet road. Always be alert to black ice if the road looks wet when the temperature is below freezing.
27 . Interstate carriers must have what information affixed to both sides of a CMV?
Federal Motor Carrier Safety Regulations (FMCSR) require carriers to affix the USDOT number to both sides of each CMV in their fleet.
28 . When checking your tires as part of the pre-trip inspection, you should look at the:
When checking your tires as part of a pre-trip inspection, it is important to verify that the tire pressure is neither too low nor too high.
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2026 Alaska | Frequently Asked Questions
To secure a CDL bus endorsement in Alaska, you first need to possess a valid Commercial Driver's License (CDL). Then, you must pass the Passenger Vehicles endorsement test. This test covers topics like vehicle inspection, loading, and on-road driving. After passing the test, you'll receive your bus endorsement. Check with the Alaska DMV for specific requirements and fees.
To obtain a CDL Bus license in Alaska, you must first hold a valid Commercial Learner's Permit (CLP) for at least 14 days. You'll then need to pass the General Knowledge test, Passenger Transport test, and a skills test in a vehicle similar to the one you'll be driving. Also, you must pass a DOT physical examination and submit a medical certification.
While Alaska does not explicitly require specific training for a CDL Bus endorsement, it's beneficial to have professional training. This can help you pass the required knowledge and skills tests. Experience driving similar vehicles can also be beneficial. Moreover, applicants must pass a physical examination and meet specific vision requirements.
CDL Bus licenses in Alaska fall under Class B or Class C. Class B is for vehicles designed to transport 24 passengers or more, including the driver. Class C is for vehicles designed to carry 16 to 23 passengers, including the driver. Each class requires passing specific knowledge and skills tests. The type of vehicle you plan to drive determines the class of license needed.
No, you cannot use your personal vehicle for the CDL Bus driving test. The vehicle used for testing must match the class of vehicle you plan to drive with your CDL. For a bus endorsement, this means you must test in a bus of the appropriate size. This ensures you can safely operate a similar vehicle under typical working conditions.
During the CDL Bus driving test, your ability to safely operate a bus is evaluated. The test includes pre-trip vehicle inspection, basic vehicle control, and on-road driving. You'll be asked to perform maneuvers such as turning, merging, backing up, and navigating intersections. You'll also be evaluated on bus-specific skills like loading/unloading passengers, operating special features, and responding to emergency situations.
Yes, additional medical prerequisites are required for a CDL Bus endorsement. Applicants must pass a Department of Transportation (DOT) physical examination by a certified medical examiner. The exam includes vision and hearing tests, blood pressure checks, and an assessment of physical abilities necessary for commercial bus driving.
No, it's illegal to transport passengers without a valid CDL Bus endorsement. The endorsement is necessary because it validates that the driver has the necessary skills and knowledge to safely operate a passenger vehicle. Driving a bus without the proper endorsement could result in hefty fines, loss of your CDL, or even imprisonment.
You can add a CDL Bus endorsement to your existing commercial driver's license. However, you're required to pass a written passenger vehicles test and a skills test in the type of vehicle you will be driving. You don't need to apply for a new license, but you must meet these additional requirements.
Yes, there are restrictions for drivers with a CDL Bus endorsement in Alaska. Drivers must be at least 21 years old to drive across state lines or carry hazardous materials. Also, all CDL drivers, including those with a Bus endorsement, are held to higher standards regarding DUI offenses and can face severe penalties for traffic violations.
