Connecticut CDL practice test

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

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

Free Connecticut CDL practice quiz

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

If one-fourth or more of the leaves in any leaf spring are missing, the vehicle:
Why is a loose or leaking exhaust system dangerous?
Which set of emergency equipment must a commercial vehicle carry?
Step 1 of the seven-step inspection method is the vehicle overview. What should you do during this step?
Before you raise the hood or tilt the cab to check the engine compartment (Step 2), you should make sure that:

Every CDL test for Connecticut drivers

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

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

Connecticut CDL fees and rules

In Connecticut the CDL is issued by the Connecticut Department 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: Connecticut CDL Manual. PassRig's questions are written from the same FMCSA manual it is based on.

What	CT	Source
Learner's permit fee	$20	portal.ct.gov
CDL fee	$70	portal.ct.gov
Knowledge test fee	$16 general knowledge; $5 per endorsement test	portal.ct.gov
Retest fee	Test fee paid again with a new application (Form R-229a)	portal.ct.gov
Permit valid for	One year from date of issue	portal.ct.gov
Minimum age	18; 21 to haul hazmat or drive interstate	portal.ct.gov
Appointment	Appointment only	portal.ct.gov
Medical certificate	Valid medical examiner certificate must be on file with DMV	portal.ct.gov
Entry-level driver training	Required before the CDL skills test since 7 February 2022	portal.ct.gov
Also worth knowing	At least seven days between skills tests	portal.ct.gov

3 official pages from Connecticut DMV were read for this section. Nothing on it is estimated.

Connecticut CDL test questions

How many questions are on the Connecticut CDL test?

The Connecticut 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 Connecticut 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 Connecticut?

Connecticut Department of Motor Vehicles gives the test. Appointment only The test content itself comes from the FMCSA CDL manual.

How much does a CDL permit cost in Connecticut?

Connecticut DMV lists the commercial learner's permit fee as $20. Fees change, so check the agency's fee page before you go.

Does PassRig have Connecticut CDL practice questions?

Yes. Pick Connecticut 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.