Virginia Tank Vehicle CDL Practice Test
Below are 25 exam-style questions for the Virginia Tank Vehicle CDL knowledge test, modeled on the FMCSA-aligned content used by the Virginia Department 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 Coast in neutral
- B Use only the parking brake
- C Pump rapidly
- D Use stab braking on non-ABS, full pressure on ABS, and be ready for surge
- A Is for the driver to enter the tank
- B Is part of the brake system
- C Is a road sign
- D Provides access to the tank interior and must be sealed during transport
- A Improve fuel mileage
- B Prevent corrosion
- C Reduce noise
- D Prevent static-electricity sparks during loading and unloading
- A Maintain speed
- B Brake earlier and more gently than normal
- C Use the parking brake
- D Brake harder to make up for traction loss
- A Be ready for surge during stops, starts, and turns
- B Use the trailer hand valve as a parking brake
- C Drive at the posted speed regardless of conditions
- D Skip pre-trip checks of vents and covers
- A Smooth and gradual to minimize side-to-side surge
- B At any speed
- C Sharp and quick
- D Without signaling
- A In low-speed maneuvers
- B In stopped traffic
- C On a curve or off-ramp at speeds the driver thought were safe
- D On straight roads
- A Allow the receiver to add chemicals
- B Mix freely
- C Verify product compatibility and follow safety procedures
- D Skip the safety check
- A Allow the receiver to handle everything
- B Skip the verification
- C Begin unloading immediately
- D Verify the receiver is ready and the receiving tank has capacity
- A Set only the tractor parking brake
- B Set both tractor and trailer parking brakes and chock if necessary
- C Leave brakes off
- D Use the trailer hand valve
- A Skip the bonding if the load is small
- B Bond and ground before opening the manhole
- C Disconnect the bonding mid-loading
- D Bond only after the loading is complete
- A Allow the receiver to handle everything
- B Stay within reach of the controls and maintain a clear view of the operation
- C Walk away to take a break
- D Stand at least 50 feet away
- A Use only the parking brake
- B Skip the brake check
- C Drive normally
- D Be especially careful with starts and stops because surge will be severe
- A Higher rollover risk
- B Faster acceleration
- C Easier handling
- D No change in handling
- A Permanently mounted to the vehicle
- B A trailer-mounted tank
- C A portable tank set on the vehicle
- D All of the above can be a cargo tank
- A Allow the shipper to drive
- B Drive immediately
- C Skip the inspection
- D Check fittings and covers for leaks before leaving the loading site
- A Close vents and covers, secure equipment, and inspect for leaks before leaving
- B Drive away with vents open
- C Skip the post-unload inspection
- D Allow the receiver to close everything
- A Lower than a flatbed
- B Only an issue when empty
- C Always present, especially with a high center of gravity and liquid surge
- D Eliminated by ABS
- A All of the above
- B Drive over the maximum allowable speed for the load
- C Skip a pre-trip inspection
- D Disregard outage requirements
- A Use parking brake intermittently
- B Coast in neutral
- C Increase speed
- D Be in low gear and use steady moderate brake application
- A L restriction
- B P endorsement
- C X endorsement (combination of H and N)
- D H endorsement
- A Has the same surge
- B Has no surge
- C Has less surge than a full tank
- D Has more surge than a full or empty tank
- A An air-brake line
- B A frozen pipe
- C A fuel line
- D A pipe that contains residual liquid product
- A The tank shell for corrosion or damage
- B All of the above
- C Special pump and valve systems
- D Manhole covers and vents
- A Trust the loader to handle it
- B Verify the correct product, quantity, and compatibility with the tank
- C Skip the verification
- D Allow the receiver to verify later
Study tips for the Virginia Tank Vehicle exam
The Tank Vehicle portion of the Virginia CDL exam is graded out of the bank of questions the Virginia Department 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 Virginia 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 Virginia 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 Virginia Department 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 Virginia 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 Virginia 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 Virginia Department of Motor Vehicles office.
Already comfortable with this endorsement? Drill another: VA General Knowledge · VA Air Brakes · VA Combination Vehicles · VA Hazardous Materials · VA Passenger · VA School Bus · VA Doubles / Triples
New to the CDL process in Virginia? Read How to apply for a CDL in Virginia for the document checklist and step-by-step timeline.