Tennessee Tanker Vehicles Test
If you're hauling fuel out of Memphis or chemicals down I-24, this test checks if you know how to keep that tanker upright on Tennessee's hills and curves.
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Tennessee Tanker test: 20 questions, 80% to pass. Know surge, baffles, and the Monteagle grade — or don't get the endorsement.
Key Topics
- •Liquid surge on grades and curves
- •Baffles and high center of gravity
- •Loading, unloading, and emergency procedures
About the Tennessee Tanker Vehicles Test
Topics Covered
- ✓Liquid surge and its effects on handling — critical on I-40's mountain curves and I-24's steep grades where surge can cause loss of control
- ✓Baffled vs. unbaffled tanks — Tennessee examiners want you to know how baffles reduce surge but don't eliminate it, especially on Monteagle
- ✓Rollover prevention — tankers have a high center of gravity; Tennessee's tight ramps and winding two-lanes make this a top test topic
- + 3 more topics
📘 Study Tips & State Info
Tennessee DMV examiners focus on real-world application. They won't ask you to recite the definition of surge — they'll give you a scenario like 'You're driving a partially loaded tanker down I-24 east of Monteagle. You hit a sharp curve. What happens?' Practice thinking through situations, not just memorizing facts.
The handbook covers tanker-specific braking. But here's the Tennessee twist: our examiners love asking about the difference between baffled and smooth bore tanks on downhill grades. If you're hauling milk from a farm in Greeneville, you might have an unbaffled tank. Know how that changes your braking on a 7% grade.
Also, pay attention to the loading section. Tennessee has several weigh stations that check tanker placards and paperwork. The test includes questions about proper loading percentages and how overfilling affects surge. Don't skip that chapter.
Tennessee administers the Tanker Vehicles test at all full-service CDL testing locations. You'll find them in Nashville (Metro Center), Memphis (Summer Avenue), Knoxville (Western Avenue), Chattanooga (Bonny Oaks Drive), and several other offices across the state. Appointments are mandatory for CDL knowledge tests — walk-ins won't get tested. Schedule online through the Tennessee Department of Safety and Homeland Security website.
You must bring your valid Tennessee driver's license, proof of residency, and your Medical Examiner's Certificate (if you already have one). The test fee is included in your CDL permit application fee — currently $36 for the permit plus $3 for each endorsement. So the tanker endorsement adds $3 to your total.
One thing that trips up out-of-state drivers: Tennessee requires you to pass the General Knowledge test before you can take any endorsement tests. You can take them all in the same visit, but only after passing General Knowledge. Plan for about an hour at the DMV, maybe more on busy days.
About the Tennessee Tanker Vehicles Test
If you plan to haul liquids in Tennessee — fuel, milk, chemicals, water — you need the Tanker Vehicles endorsement on your CDL. That means passing the Tennessee Tanker Vehicles test. It's 20 questions, same as the federal standard, and you need 16 right (80%) to pass.
Tennessee's not flat. You've got I-40 cutting through the Smokies, I-24's Monteagle grade dropping 1,200 feet in 5 miles, and I-65 rolling through Middle Tennessee. A tanker handles completely different on those roads than a dry van. Liquid surge can push your truck sideways on a curve or slam you forward when you brake. The test covers that — plus how baffles work, how to avoid rollovers, and what to do when your load shifts.
Most Tennessee tanker drivers haul gasoline, diesel, or propane from Memphis refineries or the Nashville fuel terminals. But we also have food-grade tankers moving milk from dairy farms in East Tennessee and chemical tankers servicing plants along the Mississippi. The test doesn't care what you're hauling — you need to know the physics and the rules.
Take this practice test to see where you stand. Then hit the Tennessee CDL handbook for the details. The real DMV test pulls questions straight from that book.
Topics Covered
Study Tips
Tennessee DMV examiners focus on real-world application. They won't ask you to recite the definition of surge — they'll give you a scenario like 'You're driving a partially loaded tanker down I-24 east of Monteagle. You hit a sharp curve. What happens?' Practice thinking through situations, not just memorizing facts.
The handbook covers tanker-specific braking. But here's the Tennessee twist: our examiners love asking about the difference between baffled and smooth bore tanks on downhill grades. If you're hauling milk from a farm in Greeneville, you might have an unbaffled tank. Know how that changes your braking on a 7% grade.
Also, pay attention to the loading section. Tennessee has several weigh stations that check tanker placards and paperwork. The test includes questions about proper loading percentages and how overfilling affects surge. Don't skip that chapter.
Tennessee Specific Information
Tennessee administers the Tanker Vehicles test at all full-service CDL testing locations. You'll find them in Nashville (Metro Center), Memphis (Summer Avenue), Knoxville (Western Avenue), Chattanooga (Bonny Oaks Drive), and several other offices across the state. Appointments are mandatory for CDL knowledge tests — walk-ins won't get tested. Schedule online through the Tennessee Department of Safety and Homeland Security website.
You must bring your valid Tennessee driver's license, proof of residency, and your Medical Examiner's Certificate (if you already have one). The test fee is included in your CDL permit application fee — currently $36 for the permit plus $3 for each endorsement. So the tanker endorsement adds $3 to your total.
One thing that trips up out-of-state drivers: Tennessee requires you to pass the General Knowledge test before you can take any endorsement tests. You can take them all in the same visit, but only after passing General Knowledge. Plan for about an hour at the DMV, maybe more on busy days.