Maine Tank Vehicle CDL Practice Test
Below are 25 exam-style questions for the Maine Tank Vehicle CDL knowledge test, modeled on the FMCSA-aligned content used by the Maine Bureau 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 Skip the outage if the product is cold
- B Fill the tank completely
- C Overfill if running low on time
- D Leave room for product expansion (outage)
- A Is the same as smooth-bore
- B Has only one section
- C Has no baffles
- D Has separate sections for different products
- A All of the above
- B Special pump and valve systems
- C The tank shell for corrosion or damage
- D Manhole covers and vents
- A No change in handling
- B Higher rollover risk
- C Easier handling
- D Faster acceleration
- A Use only the parking brake
- B Use stab braking on non-ABS, full pressure on ABS, and be ready for surge
- C Pump rapidly
- D Coast in neutral
- A Improve traction
- B Have no effect
- C Help you stop sooner
- D Push you forward after you stop
- A Without signaling
- B At any speed
- C Sharp and quick
- D Smooth and gradual to minimize side-to-side surge
- A Improve fuel mileage
- B Reduce noise
- C Prevent corrosion
- D Prevent static-electricity sparks during loading and unloading
- A It carries dry cargo
- B It has a tank with rated capacity of 1,000 gallons or more (single tank or aggregate of portable tanks)
- C It is a flatbed
- D It carries any liquid
- A Smooth-bore (unbaffled) tanks
- B Baffled tanks
- C Empty tanks
- D Compartmented tanks
- A Drive at posted speed
- B Cut between cars
- C Maintain extra following distance to allow gentle braking
- D Tailgate to keep position
- A Skip the post-unload inspection
- B Close vents and covers, secure equipment, and inspect for leaks before leaving
- C Allow the receiver to close everything
- D Drive away with vents open
- A Wait for the carrier to instruct
- B Refer to the ERG and shipping papers for product-specific guidance
- C Rely on memory only
- D Open all vents
- A Maintain speed
- B Use the parking brake
- C Brake harder to make up for traction loss
- D Brake earlier and more gently than normal
- A It is shorter
- B It is heavier
- C Its high center of gravity and large surface area increase wind effects
- D It uses air brakes
- A Use the trailer hand valve
- B Set both tractor and trailer parking brakes and chock if necessary
- C Set only the tractor parking brake
- D Leave brakes off
- A Stand at least 50 feet away
- B Stay within reach of the controls and maintain a clear view of the operation
- C Allow the receiver to handle everything
- D Walk away to take a break
- A Has internal walls with holes that slow liquid movement
- B Is divided into separate compartments
- C Has no internal structure
- D Is illegal in the U.S.
- A Check fittings and covers for leaks before leaving the loading site
- B Allow the shipper to drive
- C Drive immediately
- D Skip the inspection
- A Coast in neutral
- B Increase speed
- C Maintain pressure on the brakes
- D Use the escape ramp
- A H endorsement
- B X endorsement (combination of H and N)
- C L restriction
- D P endorsement
- A Has the same surge
- B Has no surge
- C Has more surge than a full or empty tank
- D Has less surge than a full tank
- A Use the parking brake on grades
- B Take the shortest route regardless of grade
- C Avoid all freeways
- D Avoid steep grades and sharp curves where possible
- A Allow another driver to load for them
- B Skip the site procedures
- C Follow site procedures and verify equipment before loading
- D Begin loading without checking
- A Anywhere outside the cab
- B 25 feet of the vehicle
- C 100 feet
- D 10 feet of the vehicle
Study tips for the Maine Tank Vehicle exam
The Tank Vehicle portion of the Maine CDL exam is graded out of the bank of questions the Maine Bureau 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 Maine 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 Maine 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 Maine Bureau 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 Maine 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 Maine 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 Maine Bureau of Motor Vehicles office.
Already comfortable with this endorsement? Drill another: ME General Knowledge · ME Air Brakes · ME Combination Vehicles · ME Hazardous Materials · ME Passenger · ME School Bus · ME Doubles / Triples
New to the CDL process in Maine? Read How to apply for a CDL in Maine for the document checklist and step-by-step timeline.