Free Wyoming Tanker CDL Practice Test
6 real Tank Vehicles questions from the same bank our students use. No account, no email needed. You see the correct answer after each question, and your score at the end.
Take the Wyoming Tanker test
Tanker is the N endorsement, for carrying liquid or gas in a tank attached to the vehicle. Liquid loads behave unlike any other, which is why they need their own qualification rather than being covered by the general tests.
- 6 questions, from the 46-question Tank Vehicles bank, one for each key manual topic
- Practice mode: the correct answer and manual reference show after each question
- 80% is a pass, the same standard as the real Wyoming CDL knowledge test
Takes about 3 minutes. Keyboard: A to D to answer, Enter for next.
At the end you get your score, the correct answer for anything you missed, and the CDL manual section to go back to. No account needed, and you can retake it as often as you like.
Already included in Wyoming HazMat + Tanker CDL Study Material and Wyoming Complete CDL Study Material. On its own it is Wyoming CDL Tank Vehicles Study Material. Not sure what you need? The CDL Selector works it out from a few questions.
About the Wyoming Tank Vehicles test
The questions come from the Wyoming CDL manual, they are multiple choice, and you need 80% to pass, the same standard as every other CDL knowledge test. Wyoming Department of Transportation gives it, and you sit it on top of the General Knowledge test rather than instead of it.
The N endorsement covers tank vehicles, and it exists because a liquid load behaves unlike any other. Surge can push a vehicle through a stop, raise the center of gravity and make a tank far easier to roll than its weight suggests. The test is about that behavior as much as about the tank itself.
It is not the same in every state
The questions come from the same federal pool wherever you sit the test, but the rules around it are set by each state. Three real examples of what differs:
- California: A CLP can only carry Tank, Passenger, and School Bus endorsements; HazMat is added to the CDL after the TSA check.
- Rhode Island: Tank vehicles must arrive empty, and HazMat tankers must be cleaned, purged, and certified.
Quoted from each agency's own published guidance. Check Wyoming Department of Transportation for the rules that apply to you.
What it covers
Our 6 free questions and the full 46-question Tank Vehicles bank are drawn from these manual sections:
- Inspecting Tank Vehicles
- Driving Tank Vehicles
- Safe Driving Rules
Every CDL applicant also sits the General Knowledge test, whatever class they are working toward. Try the free Wyoming CDL permit practice test, or see which Wyoming CDL endorsements you need.
What Wyoming requires
- The skills test fee is paid before the examiner will schedule the test.
- The CLP holding period is the federal minimum of 14 days.
- After passing, the CDL must be issued before the CLP expiration date.
- Wyoming reviews in-state medical waivers for vision, hearing, diabetes, or limb impairment for intrastate-only drivers.
Checked against Wyoming Department of Transportation on September 16, 2026. Rules change, so confirm anything that affects your booking before you travel.
Try another free CDL practice test
Each one is a different knowledge test, with real questions from the same bank our students use. No account and no email needed for any of them.
- Free CDL Permit practice test 10 questions
- Free Air Brakes practice test 7 questions
- Free Combination Vehicles practice test 8 questions
- Free HazMat practice test 6 questions
- Free Passenger practice test 6 questions
- Free School Bus practice test 8 questions
- Free Doubles & Triples practice test 6 questions
Where to go next
Work out which license class you need, then study the test that goes with it:
- Wyoming CDL classes: what Class A, B and C each let you drive.
- Wyoming CDL endorsements: H, N, P, S, T and X, and who needs each.
- What CDL do I need, by vehicle: the class and the tests for a dump truck, box truck, school bus, tanker and more.
- Wyoming CDL study material: the full study guides, practice tests and narrated audio.
Other free CDL practice tests
Each CDL knowledge test is a separate exam, and every one of them has a free practice test here:
- Free CDL Permit Practice Testthe permit test
- Free Air Brakes CDL Practice Testa restriction removal, not an endorsement
- Free Combination Vehicles CDL Practice Testa core Class A test
- Free HazMat CDL Practice Testthe H endorsement
- Free Passenger CDL Practice Testthe P endorsement
- Free School Bus CDL Practice Testthe S endorsement
- Free Doubles & Triples CDL Practice Testthe T endorsement
See all eight free CDL practice tests →
Common questions
How long is the tanker test?
The question count is set by your state rather than nationally, so Wyoming Department of Transportation is the place to confirm it. Federal rules require a set number from an approved question pool but do not publish a per-endorsement figure. 80% passes.
When do I need the N endorsement?
When you drive a vehicle carrying liquid or gas in a tank attached to the vehicle, above the regulated capacity, whether the tank is permanent or temporary. Your state agency can confirm how the thresholds apply to the vehicle you will drive.
What does the tanker test cover?
The tank vehicles section of the CDL manual: liquid surge and what it does under braking and in turns, outage and why a tank is rarely filled to the top, the high center of gravity and rollover risk, baffled and unbaffled tanks, and the inspection points specific to tanks.
Do I need HazMat too?
Only if what is in the tank requires placarding. A tanker carrying a non-hazardous liquid needs N alone. Carrying a placarded load in a tank needs both, which shows on the license as X.