texas
CDL Practice Test

As you prepare to obtain your CDL in Texas, you can use this site as a guide for practicing common test questions. Rules and regulations covered on these practice tests for a CDL are based on questions from the Texas TxDPS CDL manual. You can take these practice tests as often as you like on your computer or mobile device, and all the tests on this site are 100% free. 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 must vehicles with air brakes have?

all of these answers are correct

a minimum of 2 air tanks

an air pressure gauge that shows how much air is used by the brake chambers for braking

an air pressure gauge that shows the pressure available for braking

2 / 40

A shipment described on the Hazardous Waste Manifest may only be delivered to another _______ carrier or treatment facility, who then signs the ______, giving you a copy which you must keep.

trucking, uniform hazardous waste manifest

responsible, papers

licensed, manifest

registered, uniform hazardous waste manifest

3 / 40

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

none

it depends on how heavy the load is

1 to 1 1/2 inches

1/2 to 1 inch

4 / 40

You should_____to uncouple the converter dolly.

chock the wheels, disconnect the safety chains, and then lower the landing gear

chock the wheels, lower the landing gear, and disconnect the safey chains

lower the landing gear, disconnect the safety chain, and chock the wheels

disconnect the safey chains, lower the landing gear, and chock the wheels

5 / 40

The locking jaws of the kingpin should close around:

the apex

the base

the shank

the tip

6 / 40

You are checking the_______when looking at the dipstick to see if the lubrication is at the safe operating range or above the refill line.

washer fluid level

battery fluid level

oil level

coolant level

7 / 40

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

All answers listed.

The legally allowed weight limits.

The size of the tank.

Whether and how much the liquid will expand during the trip.

8 / 40

If you have to swerve to avoid a hazard, it's important to:

Make sure your passengers are wearing seat belts.

Warn passengers with a loud and clear voice.

Know where other vehicles are around your bus by checking your mirrors.

None of these answers are correct.

9 / 40

What is most likely to occur when the front wheels begin to skid?

A roll over will occur.

The power of the surge will disconnect the tank from the truck.

All answers listed.

You will continue heading in a straight line and moving forward no matter what direction you turn the steering wheel.

10 / 40

The school bus driver may be the only contact person from school system some parents meet. The percentage of such parents is as high as:

0.5

0.85

0.72

0.65

11 / 40

Should your air compressor stop working:

the brakes will lock up on you immediately

there will still be air pressure left in the air tanks

there will be no affect to your brakes

you will lose your ability to brake immediately

12 / 40

Which hazard classes must you NEVER smoke, or perform any activity involving fire, within 25 feet of?

Class 4 only

Class 2 only

Class 1 only

Classes 1, 2, 3, and 4

13 / 40

Air tanks should be drained:

all of these answers are correct

to prevent sludge from clogginng up the brake system valves

manually when the automatic devices fail

at the end of each shift or day

14 / 40

Under which two special conditions should you downshift?

before starting down a hill and before entering a curve

if there is an accident and in sudden heavy rain

before entering a curve and before going up a hill

before starting down a hill and before going up a hill

15 / 40

What is the best way to figure out how many seconds of following distance you have?

wait until a vehicle passes a shadow or landmark, then count the seconds until you pass it

use the stopwatch on your phone to try to determine how long before you reach a mile marker after the car in front of you appeared to reach it

get 1/4 closer to the car in front of you, then back off again multiply how long this took you by 4 for following distance

text a friend and tell them to text you back in ten seconds and see how long that seemed to take compared to how far you traveled

16 / 40

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

there will not be air going to the trailer brakes

the tractor will not be able to move

the tractor brakes will lock up

nothing will occur, it'll funciton as normal

17 / 40

Which of the following statements about the bus interior is false?

Never drive with an open emergency exit door or window.

The seats must be safe for riders all seats must be securely fastened to the bus.

If there is a red emergency door light, it must work.

If you use your outside lights, you don't need to turn on red emergency door light.

18 / 40

With Division 1.2 or 1.3 Explosive B, how close to the travelled part of the roadway can you park?

Minimum of 15 feet

Minimum of 2 feet

Minimum of 5 feet

Minimum of 10 feet

19 / 40

You should decrease to a safe speed before entering a curve and then_____through it.

shift down 2 gears

accelerate

ride the brakes

pump the brakes

20 / 40

Select what you should do before leaving the vehicle unattended:

apply the parking brakes

all of these answers are correct

remove the keys from the ignition

chock the wheels

21 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?

Only if the arm is down telling vehicles to stop

Yes

Impossible to tell without more information

22 / 40

The trailer height is correct for connecting a converter dolly to a second trailer when:

the top of the kingpin lines up with the locking jaws

the trailer will slightly rise when the converter dolly is backed under it

the kingpin is resting behind the fifth wheel

the trailer will slightly lower when the converter dolly backed under it

23 / 40

Select when you should use the parking brake:

when in residential areas

with rare exception, every time you leave your vehicle

each time you leave your vehicle for any amount of time

when you are leaving your vehicle for more than an hour

24 / 40

When a substance in the materials table is written in italics it means :

It is not the proper shipping name only those in roman type above it are proper shipping names.

It is the proper shipping name.

It is a foreign substance.

The substance is for international transport.

25 / 40

With the controlled braking method, you _____?

repeatedly tap the brakes as fast as you can

lightly apply braking pressure

apply the brakes all the way until the wheels lock up, release the brakes and apply them again when the wheels start to roll again

apply the brakes as hard as you can without locking the wheels

26 / 40

What are some things you should check on the front of your vehicle when doing the walk-around inspection?

windshield, wipers, mirrors, hood latches

low beams, high beams, four way flashers, turn signals

tires, steering parts, suspension parts, headlights

oil, transmission, air compressor, radiator

27 / 40

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

They are manually operated.

They protect the piping and tank during rear end collisions.

They will close in an emergency.

They will fall off in an emergency.

28 / 40

Which of the following statements about overhead space is true?

athe heights posted at bridges are usually accurate

an empty van is lower than a loaded one

warning lights are always installed on low bridges and overpasses

the weight of the cargo changes a truck's height

29 / 40

A trailer is at the right height to have the tractor backed up to it when:

it'll raise slightly when the tractor is backed up under it

the kingpin is about 1 1/5 inches above the fifth wheel

the top of the kingpin is even with the bottom of the fifth wheel

the fifth wheel will not come in contact with the kingpin

30 / 40

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

use a helper

use mirrors on both sides

look at your path

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

31 / 40

The best way to go into a curve is to decrease your speed going into the curve and then ____going through it.

none of the answers listed

slightly accelerate

shift down 2 gears

ride the brake

32 / 40

An air system that is fully charged will typically have ___ psi of pressure.

250

125

200

33 / 40

Where can you find a shipper’s certification?

There is no such thing.

On all packages.

On the original shipping paper.

It is a separate document that all hazmat drivers must keep in their vehicles.

34 / 40

Select the statement that best describes what the service line is for.

it is controlled by the foot brake or trailer hand brake and carries air

it is controlled by the trailer hand brake and carries air

it is controlled by the foot brake and carries air

all answers listed

35 / 40

What can you do at an accident site to help avoid another accident?

stay in your vehicle and do nothing until help arrives

leave your vehicle, do nothing, and get to higher ground

put out warning devices so people don't run into the accident site

have a drink to calm your nerves

36 / 40

Select the true statement about emergency steering and tankers:

It is easier to counter steer than other vehicles.

Do not apply the brakes when making quick movements of the steering wheel.

Have a firm grip on the steering wheel before making quick movements of the steering wheel.

None of the answers listed.

37 / 40

Buses may NOT have recapped or regrooved tires:

Anywhere except on the front wheels.

On front wheels.

When it's been raining.

On the outside rear wheels.

38 / 40

Select the true statement about speed and stopping distance.

None of these answers are correct.

You need two times the stopping distance when driving at 40 mph compared to 20 mph.

Tank surge will decrease your stopping distance.

When the road is wet it will double your stopping distance.

39 / 40

Select the true statement in regards to quick steering movements and double trailers:

it is easier to tip doubles and triples from quick steering movements than other vehicles

it is easier to countersteer doubles/triples than other vehicles

nothing will occur

you should apply a firm pressure to the brake pedal at the same moment you do quick steering movements

40 / 40

Air brake systems should not lose air faster than____when testing for air leakage rates in combination vehicles before applying the brake pedal.

3 psi a minute

6 psi a minute

2 psi a minute

5 psi a minute

Your score is

The average score is 0%

4/5 - (2 votes)

CDL Category Practice Tests

CDL Practice Test

How To Get A texas Commercial Drivers License

To be eligible for a CDL in Texas, applicants must meet the following age eligibility requirements.

Be at least 18 years old to operate a commercial vehicle intrastate (within Texas only).
Be at least 21 years old to operate a commercial vehicle interstate (outside of Texas).

Texas CDL applicants must be medically certified that they are fit enough to operate a commercial vehicle and pass a vision test. Applicants are required to submit the following documents.

(Form CDL-4) Interstate Driver Certification
(Form CDL-5) Intrastate Driver Certification
(Form CDL-10) Certificate of Physical Exemption 49 CFR Part 391/390

Some applicants may be required to submit a Medical Examiner’s Certificate. Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in Texas. Applicants can be disqualified for having multiple licenses.

Texas CDL Endorsements

H – Hazmat Vehicles
N – Tank Vehicles
P – Passenger Vehicles
S – School Bus
T – Double or Triple Trailer
X – Combination Tank Vehicles and Hazmat Vehicles

Hit the Open Road

texas CDL License Test Tips

All Texas CDL applicants must pass the general knowledge test prior to taking the skills test. This test consists of 50 questions. To pass the Texas CDL test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees. The Texas skills test can be taken 14 days after applicants pass the knowledge test. It includes a pre-trip vehicle inspection, basic control skills and on-road driving. Applicants must pass each section.

Military veterans and current military members can apply to have the skills exam waived if they meet the requirements. To qualify for a waiver, applicants must be currently enlisted in the military and:

Possess a valid Texas driver’s license.
Have at least 2 years of military truck driving experience. The military vehicle must be similar to the commercial motor vehicle.
Have been honorably discharged from the military within the past 12 months.
Submit (Form CDL-ST WVR) Application for Military Skills Test Waiver signed by your commanding officer.

Additional Information

Information on the Texas Department of Public Safety

The Texas Department of Public Safety administers CDL license requirements in Texas. To get more information contact them via:

Website: http://www.dps.texas.gov/DriverLicense/CommercialLicense.htm

Phone: 512.424.2000

Additional Texas CDL Helpful Links

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

texas CDL Practice Test

CDL Category Practice Tests

CDL Practice Test

How To Get A texas Commercial Drivers License

Hit the Open Road

texas CDL License Test Tips

Additional Information

Information on the Texas Department of Public Safety

Additional Texas CDL Helpful Links

texas
CDL Practice Test