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Wisconsin Tanker Practice Test 2

35 questions covering tanker content, drawn from the FMCSA-aligned CDL question pool and the Wisconsin Commercial Driver's Manual (BDS-356).

What this test covers

The Tanker knowledge test usually has 20 to 30 multiple-choice questions with an 80% passing score. Questions focus on liquid surge and its effect on vehicle handling, the dangers of partial loads vs. full loads, proper braking and cornering techniques for tank vehicles, baffled vs. unbaffled tanks, outage requirements (why tanks are never filled completely), and emergency procedures. If you are combining the tanker endorsement with HazMat (X endorsement), expect additional questions on hazardous liquid transport.

Sample Tanker questions

Preview of what is on Practice Test 2. Unlock with Pro to take the full 35-question test.

3 free preview of 35
1

Which CDL endorsement is required to operate a tank vehicle in Wisconsin?

2

Which type of liquid surge is most likely to push a tank vehicle through an intersection after the driver has stopped?

3

Baffled liquid tanks have bulkheads with holes that let liquid flow through. What type of surge do baffles control most effectively?

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Wisconsin CDL Tanker Practice Test 2 2026 | DMV IQ