connecticut
CDL Practice Test

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

What product is typically carried in a liquid tank trailer without baffles?

Fertilizer.

Fuel.

Food or milk products.

Hydrogen peroxide.

2 / 40

How can you check slack adjusters?

by frequently checking the pressure gauge

by pulling hard on each slack adjuster

by using a fixed wrench

it is not possible to check manually

3 / 40

It is important for driving safety to always be looking ahead. Which of the following is NOT a recommended time/distance that you should be looking ahead?

about 1 block for city driving

about 1/4 mile for open highway driving

about 12-15 seconds

about 5 car lengths on the highway

4 / 40

The front trailer supports should be____before driving away.

raised fully and the crank handle secured in its bracket

3 turns down from the top and the crank handle secured in its bracket

raised 1/2 way with the crank handle secured in its bracket

raised 1/3 of the way with the crank handle secured in its bracket

5 / 40

Select the best description of a baffle tank:

They are tanks divided down into multiple smaller tanks.

They are divided and have holes for liquid to flow through controlling surge.

It is one large tank.

None of the answers listed.

6 / 40

You must first______to supply air to the trailer.

cross the air lines to check for the presence of leaks

turn off the engine so you can hear the brakes

push in the tractor protection valve

pull out the tractor protection valve

7 / 40

Never refuel your bus:

With a higher grade of fuel.

With any of the windows open.

Without a static chain.

In a closed building with passengers on board.

8 / 40

Which of the following parts do not get checked in the Bus Interior inspection:

Each hand-hold and railing.

Emergency exit handles.

Seat coverings.

Signaling devices, including the restroom emergency buzzer, if the bus has a restroom.

9 / 40

When backing, what is the best method to use to avoid blind spots?

use a helper

back towards the driver's side, where you can see better

look at your path

use mirrors on both sides

10 / 40

Bus drivers must have a CDL if they drive a vehicle:

That has air brakes.

Designed to seat more than 16 or more persons, including the driver.

That is designed to carry more than nine passengers.

That has a gross weight rating of more than 26,000 pounds.

11 / 40

Select the true statement about convex ("spot") mirrors.

they are against the law in the majority of states

they make things closer and larger than they really are

they make things look farther away and smaller than they actually are

you do not need to look at them as often as flat mirrors

12 / 40

There must not be more than_____for engine compartment belts.

3/4 inch of play at the center of the belt

1/2 inch of play at the center of the belt

1/2 inch of play at the end of the belts

1/4 inch of play at the ends of the belt

13 / 40

Which of the following types of cargo must never be carried on a bus with passengers?

Small arms ammunition (orm-d)

Emergency drug shipments

Tear gas

Emergency hospital supplies

14 / 40

Why should you test the tractor protection valve?

to avoid loss of air from the air hose

to avoid the emergency brakes kicking on due to loss of air

all answers listed

to avoid loss of air from the trailer brakes

15 / 40

Which of the following is the proper definition of a cargo tank?

A bulk container not permanently attached to a vehicle.

A bulk container permanently attached to a vehicle.

A bulk container which can be securely affixed to a vehicle.

None of these answers are correct.

16 / 40

What is the purpose of a baffle?

It stops side to side surging.

It makes it easier to clean the tanker out.

It controls the surge of liquid forward and backwards.

It allows you to haul loads that are mixed.

17 / 40

Select the false statement about tractor protection valves.

should the trailer air leak, it keeps the air in the tractor

if the air pressure is low it will automatically close

air is allowed to leak from the tractor line when it is closed

the trailer air supply valve in the cab controls it

18 / 40

How should the hand valve be used?

only when the trailer is loaded to its maximum weight

only when accompanied by the service brakes

only when accompanied by the foot brake

to test the trailer brakes

19 / 40

After coupling with a trailer, what position should the front trailer supports be in before driving away?

raised to the top and then taken 3 cranks down and the crank handle stored in its bracket

none of the answers listed

in the fully raised position with the crank handle secured to its bracket

raised half way with the crank handle stored in the cab

20 / 40

It is good practice to_____when uncoupling.

all answers are appropriate

make sure the electrical cable is hanging with the plug end down

have the glad hands coupled to the dummy couplers

have the glad hands coupled together

21 / 40

Which of the following statements is true about speed management?

The posted speed limit is safe for all conditions.

All of these answers are correct.

You should be able to stop within the distance that you can see ahead.

Speed limits for buses are the same as cars.

22 / 40

If hazardous material is spilling from your vehicle, do not move your vehicle:

Any more than safety required.

Any more that 450 feet.

In an upwind direction.

Any more than 500 feet.

23 / 40

A placarded vehicle must carry what type of fire extinguisher?

One with a rating of 5 a/b minimum.

One with a rating of 10 b/c minimum.

One with a rating of 5 b/c minimum.

One with a rating of 10 a/b minimum.

24 / 40

If you are stopped on an incline, how can you start moving without rolling back?

shift to neutral

fully engage the clutch

aggressively pump the accelerator

apply the parking brake

25 / 40

How can you determine if your vehicle is equipped with ABS?

all of these answers are correct

check for yellow abs malfunction lamps on the instrument panel

check if your vehicle was manufactured after March 1, 1998 (they are required to have the panel light)

look for wheel speed sensor wires that are coming from the rear of your brakes

26 / 40

How far away are you required to park from a bridge, tunnel, or building if you are carrying Division 1.2 or 1.3 materials?

At least 400 feet

At least 600 feet

At least 500 feet

At least 300 feet

27 / 40

Which of the following statements about stopping distances is NOT true?

brakes, tires, springs and shocks are designed to work best when the truck is empty

trucks traveling at higher speeds require greater stopping distances

empty trucks require greater stopping distances because they have less traction

trucks traveling on ice or snow require greater stopping distances

28 / 40

On the Hazardous Materials Table, column 1 shows:

How much of the material can be put in a vehicle without placarding.

What materials can be loaded together.

How to ship an item.

To what shipping mode the information on that line applies.

29 / 40

The minimum tire tread depth for front tires is:

1/2-inch

4/32-inch

1/32-inch

3/8-inch

30 / 40

Drivers who transport route controlled radioactive materials must carry a dated certificate of radioactive materials training. This training must have ocurred within the last:

3 years

4 years

2 years

1 years

31 / 40

Select the statement that best describes what the trailer air supply control does:

when pushed in it supplies the trailer with air and when you pull it out it shuts off the air supply and puts on the trailer emergency brakes

when pulled out it supplies the trailer with air and when pushed in it shuts off the air and puts on the trailer emergency brakes

when pushed it it supplies the trailer with air and when pulled out it supplies the tractor with air

when pushed in it supplies the tractor with air and when pulled out it supplies the trailer with air

32 / 40

You are inspecting the_____when looking for broken welds, cracks, holes, or other damage to the longitudinal frame member, cross members, box, and floor.

apron

fifth wheel

catwalk

frame

33 / 40

What should you hear when you test the trailer brakes by opening the service air line at rear of trailer with the hand valve on?

you should hear air escape from the open valve

none of the answers listed

the emergency air line will release air

the service brakes will move to a fully applied position

34 / 40

Select the true statement in regards to the braking power of spring brakes.

it depends on the adjustment of the service brakes

it will not be affect by the condition of the service brakes

the braking prower increases when the brakes are hot

braking power can only be tested by licensed mechanics

35 / 40

What does outage mean?

It is the weight of the liquid.

It is the movement of the liquid.

It is the allowance needed for the expansion of liquid.

It is how quickly the tanks drain.

36 / 40

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

Oil pressure gauge

Air pressure gauge

Coolant pressure gauge

Voltmeter gauge

37 / 40

Your bus starts to lean toward the outside on a banked curve, you are:

Driving too fast.

Driving with bad tires.

Driving on a wet surface.

Driving in the mountains.

38 / 40

Select the true statement in regards to a converter dolly:

it is a connecting device consisting of one axle which disconnects a semitrailer combination vehicle converting it into two separate trailers

none of the answers listed

it is a coupling device with only two axles and a sixth wheel to which a semitrailer can be coupled to the rear of a tractor-trailer combination forming a double bottom rig

it is a coupling device with one or two axles and a fifth wheel with which a semitrailer can be coupled to the rear of a tractor-trailer combination forming a double bottom rig

39 / 40

Why should you use chocks when parking a trailer without spring brakes?

the trailer wheels are free to turn as there will be no emergency brakes should the air supply in the trailer air tank leak

to prevent a runaway trailer

the trailer wheels are free to turn as there will be no service brakes should the air supply in the trailer air tank leak

to prevent someone from stealing the vehicle

40 / 40

You can be sure air is supplied to the second trailer by:

while driving at 10 mph apply the hand valve you should stop at the same in the same distance as a single trailer driving at 5 mph

going to the rear of the second trailer and open the emergency line shut off

watch the air gauge for a drop of 30 psi

you should get out and listen for air flowing through the lines

Your score is

The average score is 0%

4.5/5 - (2 votes)

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.

connecticut CDL Practice Test

CDL Category Practice Tests

CDL Practice Test

How To Get A connecticut Commercial Drivers License

Hit the Open Road

connecticut CDL License Test Tips

Additional Information

Information on the Connecticut Department of Motor Vehicles

Additional Connecticut CDL Helpful Links

connecticut
CDL Practice Test