Kentucky CDL practice test

Getting a commercial driver's licence in Kentucky starts with the CDL knowledge tests. The content is federal: every state, Kentucky 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. Kentucky Transportation Cabinet, Division of Driver Licensing administers the test; the rules behind it are published by the FMCSA. Try the free Kentucky CDL practice questions below, then pick a full test.

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

Free Kentucky CDL practice quiz

Five questions from the general knowledge, air brakes and combination vehicles banks, the three tests most Kentucky 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

Another driver is behaving aggressively toward you. You should:
With low-beam headlights you can see about how far ahead?
When must you dim your high beams?
To avoid being blinded by oncoming headlights at night, you should:
Dirty headlights may give only about how much of the light they should?

Every CDL test for Kentucky drivers

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

How the Kentucky 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 Kentucky; the current ones from Kentucky KYTC are in the next section. What does not change is the content, and that is what PassRig drills.

Kentucky CDL fees and rules

In Kentucky the CDL is issued by the Kentucky Transportation Cabinet, Division of Driver Licensing. 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: Kentucky CDL Manual. PassRig's questions are written from the same FMCSA manual it is based on.

What	KY	Source
Learner's permit fee	$11 ($14 for REAL ID)	drive.ky.gov
CDL fee	$18.75 to $50.00	drive.ky.gov
Knowledge test fee	$5 per endorsement test (tanker, doubles/triples, passenger, school bus, hazmat)	wp.kentuckystatepolice.ky.gov
Retest fee	$5 per retake of the combination, air brake and endorsement tests	wp.kentuckystatepolice.ky.gov
Permit valid for	1 year	drive.ky.gov
Minimum age	18 to drive within Kentucky; 21 for interstate	drive.ky.gov
Appointment	Knowledge tests are scheduled online with the Kentucky State Police	kentuckystatepolice.ky.gov
If you fail	24 hours	drive.ky.gov
Attempts allowed	No limit; the written test may be taken as many times as needed	drive.ky.gov
Test languages	Knowledge test in written or oral form; no oral test for the hazmat endorsement	drive.ky.gov
Medical certificate	Certified medical examiner completes the certificate and uploads it to the FMCSA National Registry	drive.ky.gov
Entry-level driver training	Required for first-time Class A or B applicants and Class B to A upgrades	drive.ky.gov
Also worth knowing	Skills test retake costs $50.00 for each additional attempt	wp.kentuckystatepolice.ky.gov

4 official pages from Kentucky KYTC were read for this section. Nothing on it is estimated.

Kentucky CDL test questions

How many questions are on the Kentucky CDL test?

The Kentucky 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 Kentucky 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 Kentucky?

Kentucky Transportation Cabinet, Division of Driver Licensing gives the test. Knowledge tests are scheduled online with the Kentucky State Police The test content itself comes from the FMCSA CDL manual.

How much does a CDL permit cost in Kentucky?

Kentucky KYTC lists the commercial learner's permit fee as $11 ($14 for REAL ID). If you fail a knowledge test: 24 hours

Does PassRig have Kentucky CDL practice questions?

Yes. Pick Kentucky 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.