New Hampshire Tanker Endorsement Test (NH) 2026

5 out of 5 (34 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Gaining your NH CDL tanker endorsement can open doors to a rewarding career in the trucking industry. Our CDL tanker endorsement test is an invaluable resource to help you prepare effectively. It features 20 carefully crafted questions that cover essential topics such as liquid surge, weight distribution, emergency protocols, regulatory compliance, and thorough vehicle inspections. One of the key challenges of driving a tanker is managing the liquid surge effect. This New Hampshire CDL practice test emphasizes understanding how liquid movement affects vehicle stability and handling, which is crucial for safe driving. By mastering these skills, you ensure not only your safety but also the safety of others on the road. The questions on our NH tanker endorsement test closely mimic the format and content of the real test, helping you get familiar with what you will encounter. Each question is multiple choice, and you must answer at least 16 correctly to pass. After completing the New Hampshire permit practice test, you have the opportunity to review your answers. This includes going over any hints and explanations for questions you missed, which aids in reinforcing your knowledge and improving your understanding of the material. At the end of the NH drivers test practice, you'll receive a summary of your performance, highlighting the questions you answered incorrectly. This feedback is essential for identifying areas that need further study, ensuring you are well-prepared for the actual test. Whether you already hold a commercial driver's license or are just starting with a commercial learner's permit, this DMV written test practice is an essential step in your preparation. It ensures you are well-equipped to handle the unique challenges of driving a tanker vehicle, ultimately helping you succeed in obtaining your tanker endorsement.
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Sample New Hampshire Tanker Test Questions

Question 1

An inspection reveals that a cargo tank is leaking. What must happen before liquid or gas is transported in it?

  1. A The leak may remain if it is small
  2. B The tank may be used only for nonhazardous cargo
  3. C The leak must be corrected so the tank no longer leaks
  4. D The tank may be used if the destination is nearby

Correct answer: C – The leak must be corrected so the tank no longer leaks

Do not carry liquids or gases in a leaking tank. During the inspection, look under and around the vehicle for leakage and examine the tank body, valves, pipes, connections, and hoses. The tank must no longer be leaking before it is used to transport cargo.

Source: New Hampshire Commercial Driver’s License Manual — § 8.1.1, “Leaks” ([dmv.nh.gov](https://www.dmv.nh.gov/sites/g/files/ehbemt416/files/inline-documents/nhcdm.pdf?utm_source=openai))

Question 2

When inspecting a tank vehicle’s pipes, connections, and hoses, where should you pay particular attention for leaks?

  1. A Near the exhaust outlet
  2. B Around the joints
  3. C At the mounting brackets only
  4. D Along painted surfaces

Correct answer: B – Around the joints

Joints are important leak-check locations because they are where pipes, hoses, and fittings connect. Inspect all these components rather than looking only at the tank shell. Any evidence of leakage must be addressed before the vehicle carries liquid or gas.

Source: New Hampshire Commercial Driver’s License Manual — § 8.1.1, “Leaks” ([dmv.nh.gov](https://www.dmv.nh.gov/sites/g/files/ehbemt416/files/inline-documents/nhcdm.pdf?utm_source=openai))

Question 3

When does the strong forward-and-back surge of a smooth-bore tank require particular caution?

  1. A Only while the tank is being loaded
  2. B Only while the tank is being unloaded
  3. C Primarily while climbing a steady grade
  4. D While starting and stopping

Correct answer: D – While starting and stopping

Smooth-bore tanks lack baffles that would reduce forward-and-back liquid movement. Their surge can be especially strong when the vehicle begins moving or comes to a stop. Start, brake, and stop smoothly while allowing enough space to control the vehicle.

Source: New Hampshire Commercial Driver’s License Manual — § 8.2.5, “Un-baffled Tanks” ([dmv.nh.gov](https://www.dmv.nh.gov/sites/g/files/ehbemt416/files/inline-documents/nhcdm.pdf?utm_source=openai))

Question 4

What term describes the empty space left in a tank so the liquid can expand as its temperature rises?

  1. A Dry bulk
  2. B Surge control
  3. C Smooth bore
  4. D Outage

Correct answer: D – Outage

Liquids expand as they warm, so a tank must not be filled completely. The empty space reserved for that expansion is called outage. The required amount varies because different liquids expand by different amounts.

Source: New Hampshire Commercial Driver’s License Manual — § 8.2.6, “Outage” ([dmv.nh.gov](https://www.dmv.nh.gov/sites/g/files/ehbemt416/files/inline-documents/nhcdm.pdf?utm_source=openai))

Question 5

Compared with a full tank vehicle, an empty tank vehicle:

  1. A Always stops in less distance
  2. B May require more distance to stop
  3. C Always has the same stopping distance
  4. D Is always easier to control during braking

Correct answer: B – May require more distance to stop

An empty tank vehicle may take longer to stop than a full one. Drivers must account for the actual vehicle, roadway, and traffic conditions when selecting following distance and beginning to brake. The absence of cargo does not guarantee a shorter stop.

Source: New Hampshire Commercial Driver’s License Manual — § 8.3.4, “Stopping Distance” ([dmv.nh.gov](https://www.dmv.nh.gov/sites/g/files/ehbemt416/files/inline-documents/nhcdm.pdf?utm_source=openai))

Question 6

When must a tank vehicle driver know the required amount of outage?

  1. A Only while unloading a tank
  2. B Only when the tank has no baffles
  3. C When hauling liquids in bulk
  4. D Only when the tank is completely empty

Correct answer: C – When hauling liquids in bulk

A driver hauling liquids in bulk must know the applicable outage requirement. Liquids expand at different rates as their temperatures change, so they do not all require the same empty space. The proper outage also helps prevent overfilling as the cargo warms.

Source: New Hampshire Commercial Driver’s License Manual — § 8.2.6, “Outage” ([dmv.nh.gov](https://www.dmv.nh.gov/sites/g/files/ehbemt416/files/inline-documents/nhcdm.pdf?utm_source=openai))

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