connecticut
CDL Practice Test

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This site is available to practice and prepare to take the Connecticut CDL test. These tests are free and you are able to take tests as many times as you would like as you prepare to go to the DMV to take the CT CDL knowledge test. You will be presented with 40 questions and you must answer 32 questions correctly to pass. There is a 50-minute time limit. You may not go back once you answer a question. Click the "Start Test" button below to begin. 

1 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

2 / 40

Select what you should not do when coupling the glad hands.

3 / 40

Which of the following is a reason to evacuate the school bus?

4 / 40

What does the amount of liquid allowed in the tank depend on?

5 / 40

When would a drive-wheel skid result in a jackknife when pulling doubles?

6 / 40

If you work for an interstate carrier:

7 / 40

Select the two things that are important in preventing a rollover:

8 / 40

A slack adjuster is:

9 / 40

An "A/W" the first column of the hazardous materials table means:

10 / 40

You must not allow riders to stand:

11 / 40

You should back up slowly until____when coupling the trailer.

12 / 40

Select the true statement about emergency steering and tankers:

13 / 40

You must first______to supply air to the trailer.

14 / 40

The method used to make sure the spring brakes will come on automatically is to:

15 / 40

There must not be more than_____for engine compartment belts.

16 / 40

What are some of the important parts in the steering system?

17 / 40

Where are shut off valves located on trailers that are doubles or triples?

18 / 40

What are slack adjusters?

19 / 40

What is the main difference between a portable tank and a cargo tank?

20 / 40

Select the true statement in regards to the liquid inside of a bulk tank causing a tank truck to roll sideways.

21 / 40

The gauge that indicates normal or increasing lubrication pressure to prevent engine seizure, failure or breakdown is:

22 / 40

Select the item that is not checked in the engine compartment:

23 / 40

Select the action that is not appropriate when driving on slippery roads:

24 / 40

Select the true statement about what the Air Compressor Governor controls:

25 / 40

When inspecting the ______you are making sure that the lines and hoses are not chafed, cut, pinched, or dragged against tractor parts.

26 / 40

To be sure that air is supplied to the second trailer:

27 / 40

These tires should have a minimum tread depth of 4/32 inches.

28 / 40

You must be alert for road hazards so that:

29 / 40

What is the best way to prevent brakes form overheating while drive down a steep grade?

30 / 40

Select the answer that is not a part of the braking process when driving a tractor-trailer combination vehicle that has ABS:

31 / 40

Never refuel your bus:

32 / 40

Select the true statement about double or triple trailers.

33 / 40

Before transporting a sealed load, you must check:

34 / 40

The designation RQ identifies the material's:

35 / 40

At the end of each shift you should:

36 / 40

What does the air compressor governor control?

37 / 40

You should___when driving down a long steep hill.

38 / 40

You should____to check the free play of manual slack adjusters on S-Cam brakes.

39 / 40

The CDL manual indicates the last step on picking up students at the bus stop is as follows:

40 / 40

What is a common cause of tire fires?

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CDL Category Practice Tests

CDL Practice Test

How To Get A connecticut Commercial Drivers License

Those looking to obtain a Connecticut CDL must have a valid operator’s license and the following requirements below. Applicants between the ages of 18 and 21 can apply for an intrastate CDL license. Only those who are 21 years of age or older may apply for an interstate CDL as well as Hazmat, Doubles/Triples, Passenger, and School Bus Endorsements. All CDL applicants must have a medical examiner’s certificate, or DOT physical card, to be eligible for a CDL. In addition, all applicants must complete a self-certification form which describes the types of vehicles that the applicant intends to drive with their commercial driver’s license.

Any applicants who have the following are disqualified from receiving their commercial driver’s license.

  • If you are subject from receiving CDL driving privileges in another state.
  • If you have an impaired driving conviction in a commercial vehicle in the past 24 months.
  • If your license is currently suspended, revoked, denied, or canceled.
  • If you have more than one driver’s license.

CDL applicants are required to complete at least one knowledge assessment and a skills test to ensure their proficient understanding and knowledge of the commercial driving laws in the state of Connecticut.

Endorsements
T – Double or Triple Trailers
P – Passenger / Transport
N – Liquid Bulk / Tank Cargo
H – Hazardous Materials
X – Hazardous Material and Tank Combined
S – School Bus
V – Student Transportation Vehicle
A – Activity Vehicle
F – Taxi, Service Bus, Livery, Motor Bus, Motor Coach

Hit the Open Road

connecticut CDL License Test Tips

All applicants are required to complete written knowledge tests to obtain their CDL. Those looking for a Class A CDL will need to complete a 70-question test. Those looking for Class B and C CDLs will need to complete a 50-question general knowledge test. Those seeking endorsements and removal of the Air Brake Restriction will be responsible for taking a knowledge test for each endorsement or removal sought. These tests range between 20 and 30 questions. All tests must be passed with a score of 80 percent or greater.All applicants must complete a skills test in accordance with the federal regulations. Each skills test is comprised of a pre-trip inspection, driving assessment, and basic control skills. All three parts must be passed in order for the applicant to receive their commercial driver’s license. Those seeking endorsements must take the skills test in the vehicle type their intended endorsement is for.

Additional Information

Information on the Connecticut Department of Motor Vehicles

The State of Connecticut Department of Motor Vehicles regulates the CDL requirements and testing in Connecticut. To get more information contact them via:

Website:  https://portal.ct.gov/DMV/Licenses/Licenses/Commercial-Drivers/CDL---Main-Menu

Phone:  860.263.5700

 

Additional Connecticut CDL Helpful Links

Please use the links below to access more valuable Connecticut CDL testing resources and to learn more about practice driving tests for the state of Connecticut.