Wisconsin CDL practice test

Getting a commercial driver's licence in Wisconsin starts with the CDL knowledge tests. The content is federal: every state, Wisconsin included, writes its tests from the FMCSA CDL manual, so the general knowledge test has 50 questions, the endorsement tests have 20 to 30, and the passing score is 80% on each. Wisconsin Department of Transportation, Division of Motor Vehicles administers the test; the rules behind it are published by the FMCSA. Try the free Wisconsin CDL practice questions below, then pick a full test.

50general knowledge questions
80%passing score on every test
8knowledge tests covered
WIpick your state once in the app

Free Wisconsin CDL practice quiz

Five questions from the general knowledge, air brakes and combination vehicles banks, the three tests most Wisconsin Class A applicants take first. Tap an answer to see if you were right and read the explanation.

0 of 5 right0 of 5 answered

Before coupling, the fifth wheel should be tilted:
Before you back the tractor under a trailer, you should make sure:
When positioning the tractor to couple, you should:
In the coupling procedure, when do you connect the air lines to the trailer?
After supplying air to the trailer and before backing the rest of the way under it, you should:

Every CDL test for Wisconsin drivers

Each page has a free ten-question quiz, the real question count, the 80% pass mark and what the test covers.

How the Wisconsin CDL knowledge test works

You take the general knowledge test first; it is required for every CDL class. Class A drivers add the combination vehicles test. Almost everyone takes the air brakes test, because skipping it puts an air brake restriction on the licence. Endorsements (hazmat, tanker, doubles/triples, passenger, school bus) each have their own knowledge test. Pass the tests and you hold a commercial learner's permit; the skills test in a truck comes later.

Fees, appointment rules and test centre locations are set by Wisconsin; the current ones from Wisconsin DMV are in the next section. What does not change is the content, and that is what PassRig drills.

Wisconsin CDL fees and rules

In Wisconsin the CDL is issued by the Wisconsin Department of Transportation, Division of Motor Vehicles. The figures below are taken from its own pages and were last checked on 2 November 2026. Fees and rules change, so confirm with the agency before you go.

Study from the state's own book: Wisconsin Commercial Driver's Manual. PassRig's questions are written from the same FMCSA manual it is based on.

What	WI	Source
Learner's permit fee	$30 (valid 180 days)	wisconsindot.gov
CDL fee	$74, prorated for time remaining on your existing Wisconsin driver licence	wisconsindot.gov
Knowledge test fee	Free	wisconsindot.gov
Permit valid for	180 days, renewable	wisconsindot.gov
Minimum age	18 to obtain a CLP	wisconsindot.gov
Appointment	Walk-in only; the DMV does not schedule appointments for knowledge tests	wisconsindot.gov
If you fail	No sooner than the next day	wisconsindot.gov
Attempts allowed	Same test at most five times within one year	wisconsindot.gov
Test languages	English, ASL, Burmese, Croatian, Polish, Russian, Serbian or Spanish; translators not allowed	wisconsindot.gov
Medical certificate	FMCSA sends your federal medical card to the DMV electronically within 48 hours of the DOT physical	wisconsindot.gov
Entry-level driver training	Must be completed before you are eligible for CDL skills testing	wisconsindot.gov
Also worth knowing	Drivers under 21 get the CDL with a "CDL intrastate only" restriction	wisconsindot.gov

4 official pages from Wisconsin DMV were read for this section. Nothing on it is estimated.

Wisconsin CDL test questions

How many questions are on the Wisconsin CDL test?

The Wisconsin CDL general knowledge test follows the federal model: 50 questions, 40 correct to pass. Endorsement tests are shorter: air brakes 25, hazmat 30, and combination vehicles, tanker, doubles/triples, passenger and school bus 20 each.

What is the passing score on the Wisconsin CDL permit test?

80% on every knowledge test, the same pass mark used across the United States.

Where do I take the CDL knowledge test in Wisconsin?

Wisconsin Department of Transportation, Division of Motor Vehicles gives the test. Walk-in only; the DMV does not schedule appointments for knowledge tests The test content itself comes from the FMCSA CDL manual.

How much does a CDL permit cost in Wisconsin?

Wisconsin DMV lists the commercial learner's permit fee as $30 (valid 180 days). If you fail a knowledge test: No sooner than the next day

Does PassRig have Wisconsin CDL practice questions?

Yes. Pick Wisconsin in the app and you get practice sets and mock exams built from the knowledge test content your state uses, with the real counts and the 80% line.