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

You must keep shipping papers describing hazardous materials ______.

within 100 feet of the hazardous materials at all times

with the bills of lading

in a pouch on the driver’s door or in clear view within immediate reach while the seat belt is fastened while driving on the driver’s seat when out of the vehicle

in a pouch on the drivers door or in the overhead compartment above the driver’s seat only

2 / 40

What is incorrect concerning disruptive passengers?

It may be safer to wait and discharge the disruptive passenger at the next scheduled stop or a well-lighted area where there are other people.

You must ensure the disurptive rider's safety as well as that of others.

Don't discharge such riders where it would be unsafe for them.

You must remove the disruptive passenger immediately for the safety of the others.

3 / 40

When accelerating:

always use the parking brake to slow down

"hammer down" when your wheels start to spin

speed up smoothly and gradually and avoid jerking

do not engage the clutch before you take your foot off the brake

4 / 40

The bus driver must accept responsibility for supervising and controlling students while on the bus route. Who is the person in charge?

Bus driver.

Students on the bus.

The school district superintendent.

Parents of the students on the bus.

5 / 40

Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

put the gears in neutral

pump the brake pedal

look for an escape ramp or an escape route

downshift

6 / 40

What should you hear when you have the hand valve on and are testing the trailer brakes by opening the service air line at the back of the trailer?

the emergency line valve to release air

air leaving the open valve

the service brakes more to a fully applied position

the engine brake to kick on

7 / 40

The emergency air line is used to:

engage the trailer brakes when there is an air pressure loss

provide back up air pressure

engage the tractor's front brake when there is air pressure loss

to alert emegency services when there is a problem

8 / 40

Select the true statement about dual air brake systems:

they have one set of controls for two air brake systems

they are required to have two warning alarms

they have a single set of air tanks and hoses

they require less time to build up air pressure

9 / 40

Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?

Classes 1, 21, and 3

Classes 1, 3, and 6

Classes 1, 3, and 4

Classes 1, 4, and 51

10 / 40

How far before a railroad crossing should you stop your bus?

10 to 35 feet

100 feet exactly

50 to 75 feet

15 to 50 feet

11 / 40

Do empty trucks have the best braking?

yes, but only if the truck is newer than 1998

yes, but only on wet surfaces

yes

12 / 40

Select which is not an engine compartement belt:

A water pump belt

A power steering belt

An air compressor belt

A safety belt

13 / 40

Tankers used to transport hazardous materials on vehicles must be marked with:

The chemtrec phone number.

The owner's puco or icc number.

The un or na id number of the product.

The date of manufacture.

14 / 40

What type fire extinguisher is required in the power unit of a placarded vehicle?

A ul rating of 15 abc.

A ul rating of 5 b/c or above.

A ul rating of 10 b/c or above.

Any of these are acceptable.

15 / 40

Select the true statement about stop valves in a cargo tank:

They protect the piping and tank during rear end collisions.

They will fall off in an emergency.

They are manually operated.

They will close in an emergency.

16 / 40

Before backing under the trailer after connecting the air lines you should:

supply air to the trailer system and then pull the air supply knob out

have a random pedestrian direct your path of travel

take a walk around the vehicle to make sure it is clear of obstructions

double check to make sure the trailer brakes are off

17 / 40

When driving tank vehicles you should:

Maintain the posted speed limit as you enter the curve.

None of the answers listed.

Come to a stop before entering a curve and then accelerate through it.

Decrease your speed before entering a curve and then accelerate through it.

18 / 40

What will occur if you cross the connect the air lines?

nothing will occur, it'll funciton as normal

there will not be air going to the trailer brakes

the tractor brakes will lock up

the tractor will not be able to move

19 / 40

Select how brakes work on long, steep downgrades:

they are a supplement to the braking effect of the engine

it does not do anything

it's the main braking mechanism with the engine braking system available for emergency situations

it is the main braking mechanism

20 / 40

Front wheel brakes are good under what kind of conditions?

any weather conditons

icy or wet conditions

ideal weather conditions

they are not ideal

21 / 40

When stopped on a divided highway where should your reflectors be placed?

20 feet, 150 feet, and 300 feet toward the approaching traffic

10 feet, 100 feet, and 200 feet toward the approaching traffic

30 feet, 100 feet, and 150 feet toward the approaching traffic

15 feet, 75 feet, and 150 feet toward the approaching traffic

22 / 40

You are required to have a tank endorsement when transporting:

Bulk fertilizer

Materials that are hazardous

Passengers

Gas or liquid

23 / 40

How do you release the dolly brakes when coupling twin trailers?

by charging the air line

by flushing the brake line

by opening the air tank petcock

by opening the shut off valve

24 / 40

Cylinders containing compressed gases may only be loaded onto a vehicle without a flat floor or platform if the cylinders are:

Loaded into racks attached to the vehicle.

In boxes that will keep them from turning over.

Loaded in an upright or horizontal position.

All of these answers are correct.

25 / 40

In what position should the converter dolly air tank drain valve be in for double trailer combination?

in a closed position

in a halfway closed position

in a 1/3 open position

in an open position

26 / 40

This item does not need to be checked during the cab check.

The defroster/heater

The windshield wipers and fluid levels

The air conditioning

The horn

27 / 40

Select the true statement:

None of the answers listed.

Lighter vehicles requiring more braking power to stop compared to heavier vehicles.

A "bobtail" tractor will take longer to stop than a combination vehicle that is fully loaded down to the maximum weight.

Wait as long as possible to brake when driving a heavy vehicle.

28 / 40

What is the correct number of red reflective triangles that you should carry?

three

one

seven

five

29 / 40

What is the best way to stop all skids?

accelerate and countersteer

use controlled or stab braking

restore traction back to the tires

quickly turn the steering wheel side to side

30 / 40

Which of the following statements about overhead space is true?

the heights posted at bridges are usually accurate

the weight of the cargo changes a truck's height

an empty van is lower than a loaded one

warning lights are always installed on low bridges and overpasses

31 / 40

Which of these statements about signaling is correct?

Signal to others that it is safe to pass your bus.

Leave your signal on long after you've changed lanes.

Signaling is a warning, not a request.

Signal your intentions early and continuously.

32 / 40

The safety catch for the fifth wheel locking lever must be ____ for a coupling to be complete.

threaded through the locking lever

below the locking lever

above the locking lever

sticking straight up

33 / 40

Which of the following is a clue another driver is impaired:

All of these answers are correct.

Exiting the interstate when there's no gas station visible.

Open window in warm weather.

Stopping at a green light, or waiting too long at a stop.

34 / 40

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

All answers listed.

It can occur even with baffles inside that slow the flow.

It can occur when driving through a curve.

It can occur even when driving at the posted speed limit.

35 / 40

If there is not a sight glass to check the oil level you are required to look for leaks around the _____.

axle seals/hub oil

wheel rims

brake pads

transmission

36 / 40

Where are the two main places where the hazardous material identification number appears?

On the shipping papers and on a secret document in the driver's wallet.

On the package and on paperwork at the shipping point of origin.

On the package and on paperwork at the shipping destination.

On the shipping papers and on the package.

37 / 40

Select the false statement about tractor protection valves.

the trailer air supply valve in the cab controls it

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

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

if the air pressure is low it will automatically close

38 / 40

Check that the parking brake will hold by____when the parking brake is engaged and the trailer brakes released if not a combination vehicle.

all answers listed

while in neutral increase the rpm to 1500

shifting down to a low gear and trying to pull forward gently

shift up into a high gear and let off the clutch quickly

39 / 40

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

length and steepness of grade

weather

time of day

total weight of the vehicle and cargo

40 / 40

Select the factors that can cause your brakes to fade or fail:

the brakes are out of adjustment

not relying on engine braking enough

all of these answers are correct

using the service brakes excessively

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