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Free Ohio Tanker (N) Endorsement Practice Test 2025

Average pass rate for CDL tests in Ohio: 56%.
Average pass rate for this test: 78%.
Easy
6 min
Score distribution:
90-100=>44%
80-89=>31%
70-79=>16%
60-69=>7%
<60%=>2%
Avg. first-try score: 85%

Ohio is a top-10 corn producer—and tanker drivers are essential to agriculture. Liquid nitrogen fertilizers move daily from terminals to farms across the state. Beyond agriculture, Ohio’s refineries and fuel distribution networks along I-71, I-75, I-77, and I-80 create steady demand for tanker-endorsed CDL holders.

What the N endorsement allows: You can drive vehicles transporting liquids or gases in tanks with individual capacity over 119 gallons and aggregate capacity of 1,000+ gallons. Without this endorsement, you cannot legally haul any bulk liquid cargo in Ohio.

Ohio employers hiring tanker drivers:

  • Fuel/petroleum: Marathon Petroleum (Findlay headquarters), BP-Husky Toledo Refinery, regional fuel distributors
  • Agriculture: Co-ops across western Ohio, fertilizer distributors, ethanol plants
  • Food-grade: Dairy transport, liquid sweeteners, vegetable oil haulers
  • Chemical: Dow, Lubrizol (Wickliffe), industrial chemical transport

What to expect on the official Ohio Tank Vehicles test:

  • Questions: 20 multiple-choice
  • Passing score: 80%
  • Topics covered: Liquid surge and vehicle handling, tank inspection, loading/unloading, baffled vs. unbaffled tanks, emergency procedures
  • Administered by: Ohio Bureau of Motor Vehicles (BMV)

Consider the X endorsement: Adding the HazMat (H) endorsement to your Tank (N) gives you the “X” endorsement—required for hauling hazardous liquids like fuel, anhydrous ammonia, and liquid fertilizers. This combination significantly expands your job options in Ohio’s agriculture and energy sectors.

Free Ohio Tanker (N) Endorsement Practice Test 2025
Commercial Driver's License
Based on the official OH CDL HandbookHandbook‑based (2025) + exam‑taker feedback

Reviewed for legal and handbook accuracy

Steven Litvintchouk

M.S., Chief Educational Researcher (ACES member)

Last verified for accuracy on

Test design and learning experience oversight

Andrei Zakhareuski

Co-founder & CEO, Driving-Tests.org

Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the Ohio BMV changes its handbook or website information. Official sources we check:

About the Ohio CDL

Without an N endorsement: Operating a tanker vehicle carrying 1,000+ gallons aggregate without proper endorsement results in CDL violations, fines, and disqualification. Employers will not hire unendorsed drivers for tanker positions.

Ohio’s Bureau of Motor Vehicles administers CDL testing at deputy registrar locations statewide. Study the official 2025 CDL manual (Ohio CDL Handbook 2025) to understand all requirements.

Why our practice tests work:

  • 20 questions closely resembling the official BMV exam
  • Instant feedback with detailed explanations after every question
  • No timer—learn at your own pace
  • Unlimited attempts to build confidence before test day

More OH CDL test resources

  1. Tanker Vehicles Test 1 (you are here)

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