Alaska Tanker CDL Test 1 - DMV Exam Practice

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Tank Test 1

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Question 1 of 20

1. Question
Passive railroad crossings:
- Are controlled by flashing lights.
- Are not controlled by any type of traffic control device.
- Have gates that lower when trains are approaching.
- Should never be crossed by a CMV.
Correct

Railroad crossings that are not controlled by any type of traffic control device are known as passive crossings. The decision to proceed across tracks at a passive crossing is entirely up to the driver.

Incorrect

Railroad crossings that are not controlled by any type of traffic control device are known as passive crossings. The decision to proceed across tracks at a passive crossing is entirely up to the driver.
Question 2 of 20

2. Question
The amount of liquid cargo than can be loaded into a tank depends on:
- The time of year.
- Legal weight limits.
- The ability of the driver.
- Factors that affect how much liquid is safe to load into your tank include how much the liquid will expand in transit, the weight of the liquid, and legal weight limits. If you are loading a particularly dense liquid, make sure you do not exceed legal weight limits.
Correct

Incorrect
Question 3 of 20

3. Question
When driving a vehicle with empty cargo tanks that are used to carry hazardous materials, the driver:
- Can cross railroad tracks without slowing or stopping.
- Needs to slow when approaching railroad tracks, but is not required to stop.
- Must stop at railroad crossings before proceeding.
- Should never drive over railroad tracks.
Correct

A vehicle with tanks that are used to transport hazardous materials must always be stopped before being driven over railroad tracks, even if the tanks are empty.

Incorrect

A vehicle with tanks that are used to transport hazardous materials must always be stopped before being driven over railroad tracks, even if the tanks are empty.
Question 4 of 20

4. Question
When using mirrors while driving, you should:
- Look in the mirrors quickly.
- Look in the mirrors for extended periods of time.
- Use only the rearview mirror.
- Use only the driver’s side mirror.
Correct

Focusing on your mirrors for too long can be dangerous because you will have traveled a substantial distance without looking at the road ahead.

Incorrect

Focusing on your mirrors for too long can be dangerous because you will have traveled a substantial distance without looking at the road ahead.
Question 5 of 20

5. Question
Texting while driving a CMV is:
- Acceptable if the text is work-related.
- Acceptable if there are fewer than 10 words in the text message.
- Encouraged because it is safer than talking on the phone.
- Prohibited.
Correct

Texting while driving a commercial motor vehicle is both illegal and dangerous. Manually entering text into or reading text from any electronic device is considered texting.

Incorrect

Texting while driving a commercial motor vehicle is both illegal and dangerous. Manually entering text into or reading text from any electronic device is considered texting.
Question 6 of 20

6. Question
On slippery roads, you should:
- Pass vehicles if they aren’t driving the speed limit.
- Adjust driving to match the conditions.
- Drive on the shoulder.
- Accelerate and decelerate frequently.
Correct

Make sure to drive slowly and smoothly on slippery roads. Do not pass slower vehicles unless it is necessary to do so. Avoid frequently changing your speed under such conditions.

Incorrect

Make sure to drive slowly and smoothly on slippery roads. Do not pass slower vehicles unless it is necessary to do so. Avoid frequently changing your speed under such conditions.
Question 7 of 20

7. Question
If approaching a railroad crossing that is being approached by a train, you should:
- Try to cross the tracks quickly.
- Drive around any lowered gates.
- Stop and wait for the train to pass before beginning across the tracks.
- Never attempt to beat a train to a railroad crossing. It is very difficult to accurately judge the speed of an approaching train. If you come upon a crossing that is being approached by a train, you must stop and wait for the train to pass before you attempt to cross the tracks.
Correct

Incorrect
Question 8 of 20

8. Question
In poor weather, many drivers:
- Like to drive in front of trucks.
- Like to drive to the sides of trucks.
- Like to follow trucks.
- In bad weather, many automobile drivers will follow large trucks too closely, particularly if visibility is poor.
Correct

Incorrect
Question 9 of 20

9. Question
Who must mark and label the materials for shipping?
- The mechanic
- The shipper
- The driver
- The shipper of hazardous materials is responsible for correctly labeling and marking them. The driver should make sure that the shipper properly labeled and marked the materials before beginning a trip.
Correct

Incorrect
Question 10 of 20

10. Question
To avoid a crash:
- Braking is always the best option.
- Swerving may be more effective than braking.
- Drivers should leave 100 yards of distance between their vehicle and the next.
- Stopping is not always the safest response to a hazard on the road. You can almost always turn to avoid an obstacle faster than you can stop.
Correct

Incorrect
Question 11 of 20

11. Question
When passing another vehicle, you should:
- Make eye contact with the driver.
- Assume the driver doesn’t see you.
- Honk your horn.
- Wait for the other driver to signal that it is safe to do so.
Correct

Whenever you pass another driver, bicyclist, or pedestrian, you should assume as a precaution that they do not see you.

Incorrect

Whenever you pass another driver, bicyclist, or pedestrian, you should assume as a precaution that they do not see you.
Question 12 of 20

12. Question
If unsure if a road is becoming icy, a driver can:
- Guess.
- Open the window and check the front of the mirror for ice.
- Try to look at the road closely.
- Look at a weather forecast.
Correct

If you think the road surface may be becoming icy, you can check for ice on your vehicle by opening the window and feeling the front of the side mirror, mirror support, or antenna. If ice has formed on any of these items, the road is likely becoming icy as well.

Incorrect

If you think the road surface may be becoming icy, you can check for ice on your vehicle by opening the window and feeling the front of the side mirror, mirror support, or antenna. If ice has formed on any of these items, the road is likely becoming icy as well.
Question 13 of 20

13. Question
Operating a combination vehicle usually requires ____ operating a single vehicle.
- Less skill than
- About the same level of skill as
- More skill than
- Exactly the same level of skill as
Correct

Combination vehicles require more skill to drive than single vehicles. Combination vehicles are usually longer and heavier, and are more vulnerable to rollovers.

Incorrect

Combination vehicles require more skill to drive than single vehicles. Combination vehicles are usually longer and heavier, and are more vulnerable to rollovers.
Question 14 of 20

14. Question
What could indicate that a shipment you are accepting contains hazardous materials?
- The cargo is stored in cylinder tanks.
- The cargo is picked up from a supermarket.
- The cargo is packaged in cardboard boxes.
- The cargo has green packaging.
Correct

Cylinders and drums are often used to contain hazardous materials. Be sure to take the proper precautions if transporting a cargo of hazardous materials.

Incorrect

Cylinders and drums are often used to contain hazardous materials. Be sure to take the proper precautions if transporting a cargo of hazardous materials.
Question 15 of 20

15. Question
Liquid surge occurs in:
- Overfilled tanks.
- Partially-filled tanks.
- Tanks that have been emptied.
- Liquids may surge back and forth in tanks that have been partially filled. Tank drivers should be aware of how surge can affect the handling of their vehicles.
Correct

Incorrect
Question 16 of 20

16. Question
Tanks have high centers of gravity, which means:
- They get very good gas mileage.
- They are easy to roll over.
- They are very stable.
- They are easy to steer.
Correct

Tank vehicles have high centers of gravity, which makes them vulnerable to rollover.

Incorrect

Tank vehicles have high centers of gravity, which makes them vulnerable to rollover.
Question 17 of 20

17. Question
Why do drivers have to inspect their vehicles?
- It is usually a company policy.
- It is usually a local ordinance.
- It is a federal and state law.
- It adds to the amount of time for which they will be paid.
Correct

Federal and state laws require drivers to inspect their vehicles before driving to ensure that they are safe to operate.

Incorrect

Federal and state laws require drivers to inspect their vehicles before driving to ensure that they are safe to operate.
Question 18 of 20

18. Question
An Anti-Lock Braking System (ABS):
- Is not available for most trucks.
- Is not helpful in most situations.
- Is required on newer trucks.
- Beginning between 1997 and 1999, most commercial vehicles, trailers, and dollies are required to be equipped with ABS.
Correct

Incorrect
Question 19 of 20

19. Question
To test the trailer service brakes, you should:
- Move the vehicle forward slowly and apply the brakes with the brake pedal.
- Reverse the vehicle slowly and apply the brakes with the hand control.
- Reverse the vehicle slowly and apply the brakes with the brake pedal.
- Move the vehicle forward slowly and apply the brakes with the hand control.
Correct

To test the trailer service brakes, you should first ensure that the braking system has a normal air pressure level, then release the parking brake. You should then move the vehicle forward slowly and apply the brakes with the hand control. If the trailer service brakes are working properly, you will feel the brakes activate.

Incorrect

To test the trailer service brakes, you should first ensure that the braking system has a normal air pressure level, then release the parking brake. You should then move the vehicle forward slowly and apply the brakes with the hand control. If the trailer service brakes are working properly, you will feel the brakes activate.
Question 20 of 20

20. Question
If feeling drowsy while driving, you should:
- Press on and finish the trip.
- Drive faster to reach your destination more quickly.
- Safely leave the road and take a nap.
- If you begin to feel drowsy while driving, the best thing to do is to stop and get some sleep. A driver trying to push on and finish a trip while fatigued is a major cause of fatal accidents.
Correct

Incorrect

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Related FAQs

What is a Class A CDL license in Alaska?

A Class A Commercial Driver’s License (CDL) in Alaska allows you to operate combination vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the vehicle being towed exceeds 10,000 pounds. This includes vehicles such as tractor-trailers, flatbeds, and heavy haulers.

What vehicles can I operate with an Alaska Class A CDL license?

With a Class A CDL in Alaska, you may drive large combination vehicles like semi-trucks, livestock trailers, and tankers. You may also operate Class B and Class C vehicles if you have the required endorsements.

What are the requirements to obtain a Class A CDL license in Alaska?

To obtain a Class A CDL in Alaska, you must: (1) be at least 18 years old for intrastate driving or 21 for interstate, (2) pass a DOT medical exam, (3) obtain a Commercial Learner’s Permit (CLP), (4) complete Entry-Level Driver Training (ELDT) through an FMCSA-certified provider, and (5) pass the written and skills tests administered by the Alaska Division of Motor Vehicles (DMV).

What is the minimum age requirement for a Class A CDL license in Alaska?

You must be at least 18 years old to drive commercially within Alaska. To drive interstate or transport hazardous materials, you must be at least 21 years old.

Do I need any endorsements for an Alaska Class A CDL license?

Yes. You may need endorsements such as T (Double/Triple Trailers), N (Tankers), H (Hazmat), X (Tank and Hazmat Combined), or P (Passenger) depending on your vehicle or cargo. Each endorsement requires a separate knowledge test.

What is involved in the Class A CDL skills test in Alaska?

The Alaska CDL skills test includes: (1) a Pre-trip Inspection to assess your understanding of vehicle safety, (2) a Basic Control Skills test to evaluate your maneuvering ability, and (3) an On-Road Driving Test to ensure safe operation of a commercial vehicle in real traffic.

Are there any restrictions or limitations for drivers with an Alaska Class A CDL license?

Yes. Drivers under 21 are limited to operating within Alaska and may not transport hazardous materials. Additional restrictions may apply depending on physical health, driving history, or disqualifying offenses.

Can I take the Class A CDL written test in a language other than English in Alaska?

Alaska offers the CDL knowledge test in English and Spanish. The road skills test must be conducted in English, in accordance with federal safety requirements.

Can I request accommodations for the Alaska Class A CDL written test due to a disability?

Yes. The Alaska DMV provides accommodations for individuals with disabilities. You must contact your local testing center in advance and submit appropriate documentation to request accommodations.

What happens if I fail the Class A CDL written test in Alaska? Can I retake it?

If you fail the CDL written test in Alaska, you may retake it after a waiting period. Retest fees may apply. It is recommended to review the Alaska CDL Manual and take online practice tests before attempting the exam again.

Pass Your Written Test on the First Try

Getting your driver’s license is a big step, and we’re here to help make it easier. Our free DMV practice tests are designed to simulate the real exam and boost your confidence before taking the actual written knowledge test. Whether you’re applying for a learner’s permit, standard license, or a renewal, our practice exams cover everything you need to know to pass.

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Frequently Asked Questions

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Our questions are based directly on the 2025 state driver’s handbooks and updated regularly. They closely resemble what you’ll see on the actual DMV test.

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Tank Test 1

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