New Hampshire Tank Vehicle CDL Practice Test
Below are 25 exam-style questions for the New Hampshire Tank Vehicle CDL knowledge test, modeled on the FMCSA-aligned content used by the New Hampshire Division of Motor Vehicles. Try to answer each question on your own before reading the answer key directly under it. The questions and answer choices are shuffled deterministically per state and endorsement, so the order will stay the same on repeat visits — that lets you genuinely measure your improvement.
- A The vehicle is heavy and stops slower; surge is reduced but mass is high
- B There is no effect
- C Surge is severe
- D It stops faster
- A Only an issue when empty
- B Always present, especially with a high center of gravity and liquid surge
- C Eliminated by ABS
- D Lower than a flatbed
- A Continue to the destination
- B Allow product to leak until empty
- C Stop, isolate the area, and notify emergency services and the carrier
- D Drive faster to limit the spill
- A Maintain pressure on the brakes
- B Increase speed
- C Coast in neutral
- D Use the escape ramp
- A Walk away to take a break
- B Allow the receiver to handle everything
- C Stand at least 50 feet away
- D Stay within reach of the controls and maintain a clear view of the operation
- A Higher rollover risk
- B Easier handling
- C Faster acceleration
- D No change in handling
- A In low-speed maneuvers
- B On straight roads
- C On a curve or off-ramp at speeds the driver thought were safe
- D In stopped traffic
- A Rely on memory only
- B Refer to the ERG and shipping papers for product-specific guidance
- C Open all vents
- D Wait for the carrier to instruct
- A Apply the parking brake immediately
- B Hold the steering wheel firmly because the load may push you forward
- C Release the wheel
- D Disengage the clutch
- A A portable tank set on the vehicle
- B Permanently mounted to the vehicle
- C All of the above can be a cargo tank
- D A trailer-mounted tank
- A The tank is partially loaded and surge is highest
- B On curves, ramps, and slick surfaces
- C All of the above
- D Stopping or starting in traffic
- A Sharp and quick
- B Without signaling
- C Smooth and gradual to minimize side-to-side surge
- D At any speed
- A Use only the parking brake
- B Drive normally
- C Be especially careful with starts and stops because surge will be severe
- D Skip the brake check
- A Tailgate to keep position
- B Drive at posted speed
- C Cut between cars
- D Maintain extra following distance to allow gentle braking
- A Has separate sections for different products
- B Has no baffles
- C Has only one section
- D Is the same as smooth-bore
- A Honk and proceed
- B Maintain posted speed
- C Use the inside lane only
- D Slow well below posted speed and watch for surge as you change direction
- A Operates the brakes
- B Improves fuel mileage
- C Captures vapors during loading and unloading to reduce emissions
- D Reduces engine noise
- A Use only the parking brake
- B Coast in neutral
- C Pump rapidly
- D Use stab braking on non-ABS, full pressure on ABS, and be ready for surge
- A Use the trailer hand valve as a parking brake
- B Disregard surge
- C Skip outage
- D All of the above
- A Allow the receiver to verify later
- B Verify the correct product, quantity, and compatibility with the tank
- C Trust the loader to handle it
- D Skip the verification
- A Speed up
- B Drive without checking
- C Pull over and re-check the load and securement
- D Take a break only
- A Follow site procedures and verify equipment before loading
- B Allow another driver to load for them
- C Begin loading without checking
- D Skip the site procedures
- A Compartmented tanks
- B Baffled tanks
- C Smooth-bore (unbaffled) tanks
- D Empty tanks
- A Drive while unloading
- B Open vents while pressure is high
- C Open vents only after pressure is equalized
- D Skip the venting
- A Skip the outage if the product is cold
- B Leave room for product expansion (outage)
- C Fill the tank completely
- D Overfill if running low on time
Study tips for the New Hampshire Tank Vehicle exam
The Tank Vehicle portion of the New Hampshire CDL exam is graded out of the bank of questions the New Hampshire Division of Motor Vehicles draws from each year. While the exact bank is not published, every question is sourced from the Tank Vehicle chapter of the New Hampshire CDL handbook, which itself is derived from the FMCSA Model Commercial Driver's License Manual. That means studying our practice tests, reading the corresponding handbook chapter, and re-reading the parts you got wrong is genuinely the most efficient route to a first-time pass.
Most successful applicants follow a simple cycle: take the practice test cold, write down every question you missed, open the matching chapter of the official New Hampshire handbook, re-read the section that contains the right answer, then re-take the practice test 24 to 48 hours later. The 24-hour delay matters — sleep is when your brain commits new information to long-term memory, and CDL knowledge questions reward that kind of consolidated learning rather than cramming.
Pay particular attention to questions that include qualifier words like always, never, only, primary, or most. CDL test writers love to flip the right answer with a single qualifier. When two answer choices look almost identical, pay attention to the verb (is it must, should, or may?) and to any numbers (14 days, 100 air miles, 8 hours, 70/8 split). On endorsement tests in particular, watch for trick framing where a true statement about a different endorsement is offered as the "correct" answer to a question that is actually about Tank Vehicle.
Test-day logistics matter too. Bring photo ID, your Social Security card or birth certificate, your medical examiner's certificate (DOT card), and proof of state residency if you haven't already submitted those documents. The New Hampshire Division of Motor Vehicles will not let you sit for the knowledge exam without your documentation, and most offices charge an additional fee for re-attempts. Arrive early — the wait at most CDL testing offices runs 30 to 60 minutes — and silence your phone before the exam begins.
Finally, keep your General Knowledge fundamentals sharp even when you're focused on the Tank Vehicle exam. Many states administer multiple knowledge tests in a single sitting, and questions on weight definitions (GVWR, GCWR, GAWR), stopping distance, and the pre-trip inspection routine show up across endorsements. If you're unsure on the basics, sit a fresh New Hampshire General Knowledge practice test before scheduling the real exam.
Next steps
Missed more than four questions? Re-read the Tank Vehicle study guide and the matching chapter in the official New Hampshire CDL handbook. Then come back and re-take the test. Once you can score 22 of 25 or higher on three runs in a row, you're in good shape to schedule the real exam at your local New Hampshire Division of Motor Vehicles office.
Already comfortable with this endorsement? Drill another: NH General Knowledge · NH Air Brakes · NH Combination Vehicles · NH Hazardous Materials · NH Passenger · NH School Bus · NH Doubles / Triples
New to the CDL process in New Hampshire? Read How to apply for a CDL in New Hampshire for the document checklist and step-by-step timeline.