Alaska Tanker Endorsement Test (AK) 2026

5 out of 5 (34 votes)
80% Passing score
20 Questions
4 Mistakes allowed
If you're preparing for your Alaska CDL tanker endorsement, our Alaska CDL tanker practice test is a vital resource. This 20-question Alaska CDL tanker endorsement test is meticulously designed to provide a comprehensive assessment of your skills. It covers crucial topics such as liquid surge, weight distribution, emergency protocols, regulatory compliance, and vehicle inspection. Each question is multiple choice, and to pass, you need to answer at least 16 correctly. Understanding the liquid surge effect is essential for managing the stability and handling of a tanker vehicle. Our Alaska DMV practice test emphasizes this concept, ensuring you grasp the nuances of how liquid movement within the tank can impact your driving. Furthermore, the importance of conducting regular specialized inspections cannot be overstated. This Alaska tanker endorsement test stresses the need for ensuring the tank and vehicle components are in optimal condition. The questions in this Alaska practice permit test are based on the official driver's manual, which is the same resource used for the real DMV permit test. If the information is not in the manual, it will not appear on the test. This means you are practicing with the most reliable and accurate material available. Multiple attempts are allowed with this CDL practice test, giving you the freedom to take it as many times as needed to pass and become comfortable with the material before moving on to the next CDL practice test. Our tests feature a large pool of questions, offering you ample opportunity to learn and thoroughly prepare for the DMV written test. Whether you are currently holding a commercial driver's license or a commercial learner's permit, the Alaska CDL tanker endorsement test is essential for your preparation. Get ready to master the key skills and knowledge required for your tanker endorsement, ensuring you are fully prepared for the challenges ahead.
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Sample Alaska Tanker Test Questions

Question 1

Why must a smooth-bore tank vehicle be driven more cautiously than a baffled tank vehicle?

  1. A. Its cargo produces less surge feedback for the driver
  2. B. Nothing inside the tank slows the strong forward-and-back liquid surge
  3. C. Its interior design eliminates side-to-side liquid movement
  4. D. The baffles make the baffled vehicle substantially heavier

Correct answer: B. – Nothing inside the tank slows the strong forward-and-back liquid surge

The Alaska CDL manual describes smooth-bore tanks as unbaffled tanks with nothing inside to slow the flow of liquid. As a result, forward-and-back surge can be very strong. Drivers must operate these tanks with extreme caution, particularly while starting and stopping, when surge can have a major effect on vehicle handling.

Source: Alaska Commercial Driver License Manual — § 8.2.5, “Un-baffled Tanks”

Question 2

An empty tank vehicle can always stop in less distance than the same vehicle when loaded.

  1. A. True
  2. B. False

Correct answer: B. – False

Do not assume that an empty tank vehicle will stop more quickly. The CDL manual warns that an empty tank vehicle may take longer to stop than a full one. Drivers must judge stopping space according to the vehicle, road, weather, and traffic conditions rather than relying only on cargo weight.

Source: Alaska Commercial Driver License Manual — § 8.3.4, “Stopping Distance”

Question 3

Which item is special-purpose tank vehicle equipment that must be checked for proper operation?

  1. A. A handheld tire-pressure gauge
  2. B. A vapor-recovery kit
  3. C. The windshield wipers
  4. D. The low-beam headlights

Correct answer: B. – A vapor-recovery kit

A vapor-recovery kit is special-purpose equipment found on some tank vehicles and must be checked to ensure it works. Other examples include grounding and bonding cables, emergency shutoff systems, and built-in fire extinguishers. Windshield wipers and headlights are regular vehicle systems rather than special-purpose tank equipment.

Source: Alaska Commercial Driver License Manual — § 8.1.2, “Check Special Purpose Equipment”

Question 4

What makes liquid tank vehicles especially vulnerable to rollovers?

  1. A. Oversized tires
  2. B. Greater vehicle length alone
  3. C. A high center of gravity combined with liquid movement
  4. D. The weight of an empty tank

Correct answer: C. – A high center of gravity combined with liquid movement

Liquid tank vehicles require special handling because they have a high center of gravity and the cargo can move inside the tank. A high center of gravity makes the vehicle top-heavy, while liquid movement can affect handling during turns, braking, and acceleration. The Alaska CDL manual warns that liquid tankers are especially easy to roll over.

Source: Alaska Commercial Driver License Manual — § 8.2, “Driving Tank Vehicles”, Alaska Commercial Driver License Manual — § 8.2.1, “High Center of Gravity”

Question 5

Before loading, unloading, or moving a tank vehicle, what must you verify about its intake, discharge, and cut-off valves?

  1. A. They are all fully open
  2. B. They are all fully closed
  3. C. They have matching identification colors
  4. D. They are in the correct positions for the operation

Correct answer: D. – They are in the correct positions for the operation

The Alaska CDL manual directs drivers to check the intake, discharge, and cut-off valves before loading, unloading, or moving a tank vehicle. Each valve must be in the correct position for the intended operation. The inspection should also include the tank shell, pipes, connections, hoses, manhole covers, and vents for damage or leaks.

Source: Alaska Commercial Driver License Manual — § 8.1.1, “Leaks”

Question 6

When emergency steering is necessary in a tank vehicle, which action is correct?

  1. A. Brake hard throughout the quick turn
  2. B. Turn as sharply as possible to clear the hazard
  3. C. Accelerate while beginning the steering movement
  4. D. Avoid applying the brakes while making the quick steering movement

Correct answer: D. – Avoid applying the brakes while making the quick steering movement

Do not apply the brakes while making a quick steering movement. Braking during a turn can lock the wheels and cause a skid, and a sharp maneuver can increase the risk of rollover in a top-heavy tank vehicle. Turn only as much as necessary to clear the hazard and be prepared to counter-steer.

Source: Alaska Commercial Driver License Manual — § 2.17.1, “Steering to Avoid a Crash”, Alaska Commercial Driver License Manual — § 8.3.2, “Controlling Surge”

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