Knowledge Test Class A #1
Class A Driving Test | Alaska 2026 #1 Page 3 of 7
Train for FREE online with our Alaska class A 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 A 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 A requirements may vary from state to state.
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15 . 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.
16 . 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.
17 . A ramp's posted speed limit:
Posted speed limits on exit and entrance ramps often show speeds that are safe to be driven by cars. However, these speed limits may be too fast for large or heavily-loaded vehicles and CMV drivers will likely need to slow down to a speed below the posted limit.
18 . When experiencing cold weather, be sure to check your vehicle's alcohol evaporator:
An alcohol evaporator can help prevent ice from building up in an air brake system. In cold weather, the evaporator should be checked and refilled every day.
19 . When a vehicle is started, the coolant temperature should:
After an engine is started, the coolant temperature should begin a gradual rise toward the normal operating range.
20 . While driving, ____ generally holds spring brakes in place.
While driving, spring brakes are generally held in place by air pressure. If the air pressure gets low enough, the springs will activate the brakes.
21 . If you have an engine fire, you should:
To keep an engine fire from spreading, you should turn off the vehicle's engine as soon as possible. Do not open the hood if you don't have to.
2026 Alaska | Frequently Asked Questions
To acquire a Commercial Driver’s License (CDL) Tank endorsement in Alaska, you must first have a valid Alaska CDL. Then, study the Tank Vehicle section of the Alaska CDL manual, and pass the written knowledge test at your local DMV office. The endorsement will be added to your CDL upon successful completion of the test.
To obtain a Commercial Driver's License (CDL) Tank endorsement, you must first possess a valid CDL. It's essential to study the Tank Vehicle section of your state's CDL manual thoroughly. Afterwards, you'll need to pass a written knowledge test at your local Department of Motor Vehicles (DMV). Once you've successfully passed the test, the endorsement is added to your CDL.
While Alaska does not require specific training or experience for a CDL Tank endorsement, it's crucial to study the Tank Vehicle section of the Alaska CDL manual. You must pass a written knowledge test about tank vehicle safety, operations, and regulations. However, practical experience or training can be beneficial to pass the test and operate tank vehicles safely.
Yes, to obtain a CDL Tank endorsement in Alaska, you are required to pass an additional written test. This test is specifically designed to assess your knowledge of the safe operation of tank vehicles. The Alaska Commercial Driver License Manual provides useful information to help prepare for this test.
The written test for the CDL Tank endorsement covers various subjects relating to tank vehicles. Topics include inspecting tank vehicles, safe driving practices, managing the vehicle's weight, handling bulk packages of liquids or gases, and emergency procedures. Understanding these areas is crucial for safely operating a tank vehicle and passing the test.
The CDL Tank endorsement assessment is primarily a written test, focusing on knowledge rather than specific maneuvers. It evaluates your understanding of inspecting tank vehicles, safe driving practices, weight management, handling of liquid or gas bulk packages, and emergency procedures. However, general CDL tests will assess your practical driving skills and maneuvers.
Yes, there are limitations for drivers with a CDL Tank endorsement. They can only operate commercial motor vehicles designed to transport any liquid or gaseous materials within a tank. Also, they must comply with specific safety regulations regarding the handling and transportation of hazardous materials. Any violation of these rules can result in the suspension or revocation of the endorsement.
No, a valid Commercial Driver's License (CDL) with a Tank endorsement is required to transport liquid or gaseous materials in a tank vehicle. This endorsement ensures that drivers have the necessary knowledge and skills to handle such materials safely. Driving without the proper endorsement can result in serious penalties, including fines and license suspension.
You can add a CDL Tank endorsement to your existing Commercial Driver's License. However, you'll need to pass the tanker endorsement test, which covers specific regulations and safety measures for transporting liquid or gaseous materials. You don't need to apply for a new CDL, but there will be fees associated with adding an endorsement.
Yes, to handle hazardous materials with a CDL Tank endorsement, you must also obtain a Hazardous Materials (HazMat) endorsement. This involves passing a written test on the Federal Hazardous Materials Regulations and a TSA security threat assessment. These ensure you understand the safety procedures and risks associated with transporting hazardous materials.