PassMyDMV

Connecticut CDL Practice Test

Free practice questions for the Connecticut commercial driver license written exams — general knowledge, air brakes, combination vehicles, and every endorsement.

Connecticut's DMV written test is a critical step toward obtaining your learner's permit or driver's license. The test covers information from the official Connecticut Driver's Manual and applies to standard car licenses, motorcycle endorsements, and commercial driver licenses. Connecticut distinguishes itself through its work zone safety requirements—as of January 1, 2026, all new permit applicants must complete a free online work zone safety course before receiving a learner's permit, reflecting the state's commitment to construction zone safety. The practice questions on PassMyDMV are drawn from the official Connecticut driver manual, ensuring your preparation aligns with what you'll encounter at the DMV.

About this section of the Connecticut test

Connecticut offers Commercial Driver License testing for drivers seeking to operate commercial vehicles. The CDL knowledge test covers federal transportation regulations, vehicle control, and safety. Endorsements are available for HazMat, Tanker, Passenger, Doubles/Triples, School Bus, and Air Brakes, each with associated fees. A CDL permit costs $16, and a full CDL license costs $38.

Start practicing

Open the Connecticut practice test — pick car, motorcycle, or CDL, then drill quick quizzes or full simulated exams.

Read the source manual

Browse the official Connecticut driver manual — every practice question deep-links to the page that explains the rule.

Frequently asked questions

How many questions are on the Connecticut permit test?
The Connecticut permit test consists of 25 multiple-choice questions covering traffic laws, road signs, and safe driving practices from the official Connecticut Driver's Manual.
What's the passing score for the Connecticut written test?
You must score at least 80% on the Connecticut permit test, which means you need to answer at least 20 out of 25 questions correctly to pass.
How much does the Connecticut written knowledge test cost?
A Connecticut learner's permit costs $19. If you fail the test and need to retake it, there's an additional $40 fee to reschedule your test appointment.
How old do I have to be to take the Connecticut permit test?
You must be at least 16 years old to apply for a learner's permit and take the written knowledge test in Connecticut.
Can I take the Connecticut DMV test in Spanish or other languages?
Yes, Connecticut offers the DMV written test in multiple languages including Spanish, Arabic, French, Italian, Mandarin, Polish, Portuguese, Russian, and others, in compliance with state law requiring the test in languages spoken by at least 1% of the population.
How many times can I retake the Connecticut written test?
You can retake the Connecticut written test multiple times. However, you must wait seven calendar days between each attempt, and you'll need to pay $40 to reschedule your appointment each time you fail.
Is the Connecticut permit test online or in person?
The Connecticut DMV written test is conducted in person at DMV facilities. You must schedule an appointment and visit a local DMV office to take the test.
What documents do I need to bring to the Connecticut DMV?
You'll need proof of identity (such as a U.S. passport or birth certificate), proof of Social Security number, and two pieces of mail dated within the last 90 days showing your current Connecticut address from two different sources (such as utility bills, bank statements, or paystubs). All documents must be originals or certified copies.

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