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 are the 3 methods for securing a second trailer before coupling?

parking on level ground, chocking the tires, and charging the trailer air tank if it doesn't have spring brakes

all answers listed

parking against another trailer, locking the trailer door, and chocking the tires

chocking the tires, parking on level ground, and charging the air tank

2 / 40

You should back up slowly until____when coupling the trailer.

the rear wheels are visible in the mirror

the fifth wheel has just touched the trailer

the tractor comes in contact with the front of the trailer

the cargo inside the trailer shifts

3 / 40

This gauge will indicate if the generator or alternator is charging:

Oil pressure

Voltmeter/ammeter

Gas tank

Coolant

4 / 40

Who is responsible for certifying on the bills of lading that the hazardous materials are prepared properly?

The dock workers

The shipper

The driver

The carrier

5 / 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?

the emergency air line will release air

none of the answers listed

you should hear air escape from the open valve

the service brakes will move to a fully applied position

6 / 40

The emergency air line is used to:

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

provide back up air pressure

engage the trailer brakes when there is an air pressure loss

to alert emegency services when there is a problem

7 / 40

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

The coolant level

The level of the oil

The oil pressure

The power steering fluid

8 / 40

Select the true statement in regards to managing the space to the sides:

you should drive down the center of both lanes over the pavement markings

high wind gusts will not cause any issues for doubles or triples

you should try to avoid driving next to others when possible

you should always keep your vehicle to the right side of the lane

9 / 40

Which of the following is the most important reason for doing a pre-trip inspection?

to make sure nothing has been stolen from the vehicle

safety for yourself and other road users

because other drivers do it

to make sure the vehicle will make your destination

10 / 40

You need to be extra careful when driving smooth bore tanks:

When stopping or starting.

When hauling food or milk products.

When unloading or loading.

All answers listed.

11 / 40

Select the statement that is true in regards to managing space to the sides.

all answers listed

you should always keep your vehicle to the right side of the lane

you should try to avoid driving next to others when possible

high gust winds do not cause any issues for triples and doubles

12 / 40

This should have no illegal stickers, dirt, obstructions, or damage to the glass.

Mirrors and windshield

The rearview mirror

None of the answers listed

The headlights

13 / 40

You downshift automatic transmissions ______.

half way down a hill

before going down a hill

at the bottom of a hill

none of these answers are correct

14 / 40

What color are all school buses painted?

Florescent yellow.

National school bus yellow.

Orange yellow.

The individual district decides the exact color.

15 / 40

The emergency air line is _____and the service air line is____.

red, blue

red, green

white, blue

yellow, white

16 / 40

Which of the following is NOT an appropriate reason to flash your braking lights?

to warn vehicles approaching you from behind that you are driving slowly

to warn drivers behind you when you need to slow down

to signal to tailgaters that they are too close to your vehicle

to alert drivers behind you that there are hazards ahead

17 / 40

A tractor should not be backed under a trailer until the whole air system is:

is at half of the maximum pressure

is between 50 and 80 psi

is between 40 and 60 psi

at a normal pressure

18 / 40

With the engine cut off and the brakes released the air loss in a straight truck or bus should not be more than:

3 psi in a minute

4 psi in a minute

5 psi in a minute

2 psi in a minute

19 / 40

How should you know when to shift?

engine speed and the shift indicator light

road speed and wind speed

every 3 to 5 seconds or engine speed

engine speed and road speed

20 / 40

Why should you not use the trailer hand brake to straighten out a jack knifing trailer?

none of the answers listed

the trailer wheels caused the skid in the first place once the trailer wheels grip the road again, the trailer will start to follow the tractor and straighten out

the tractor wheels caused the skid in the first place once the trailer wheels grip the road again, the trailer will start to push the tractor and straighten out

this is the only situation in which you should use the hand brake

21 / 40

For Division 1.1 or 1.2 Explosives A, should the floor liner required be stainless steel?

Never use a floor liner for any explosive class

Yes

Any type of floor liner is sufficient

22 / 40

You should___when driving down a long steep hill.

release the brake once the vehicle is traveling 5 mph below the safe speed

use the engine brakes only

begin braking once the vehicle is 10 mph above safe speed

repeatedly pump the brake pedal

23 / 40

The belt that you need to make sure is securely mounted, without frays, and adjusts and latches properly is the:

The power steering belt

The air compressor belt

The seat/safety belt

The water pump belt

24 / 40

The air leakage rate for a combination vehicle should not exceed ____psi a minute.

25 / 40

You should never brake and should rely only steering inputs to avoid a crash while driving a tanker truck.

True, but only on downgrades

True

False

True, but only in ideal conditions

26 / 40

This object releases the fifth wheel locking jaw to allow uncoupling.

The apron

The release arm

The locking pins

The arm bar

27 / 40

Which of the following should you do when confronted by an aggressive driver?

all of these answers are correct

avoid eye contact

ignore rude gestures and refuse to react negatively

if you can safely do it, call the police from a cell phone

28 / 40

To transport cargo safely, which of these are you NOT responsible for?

ensuring the freshness of sealed cargo

recognizing possible overloads

making sure that cargo is properly secured

inspecting the cargo

29 / 40

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

the center of the kingpin is past the locking jaw

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

all answers listed

the kingpin is over the fifth wheel

30 / 40

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

Yes

Impossible to tell without more information

Only if the arm is down telling vehicles to stop

31 / 40

Select the true statement in regards to your brake function when your ABS fails

there is a huge fire risk

you will have no control over your truck as the brakes will not be functioning

you will need to pull over immediately

the abs will need to be repaired but the brakes will function normally

32 / 40

A safe haven is ______.

an approved place for parking unattended vehicles loaded with corrosive materials

an approved place for parking unattended vehicles loaded with explosive materials

an approved place for parking unattended vehicles loaded with radioactive materials

an approved place for parking attended vehicles loaded with flammable materials

33 / 40

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

seven

one

three

five

34 / 40

You should check your tires every ____ or every ____ when driving in very hot weather.

2 hours, 100 miles

3 hours, 200 miles

1 hour, 50 miles

5 hours, 250 miles

35 / 40

The act of operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others is known as.

road rage

aggressive driving

distracted driving

defensive driving

36 / 40

Which of the following statements is true about speed management?

Speed limits for buses are the same as cars.

All of these answers are correct.

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

The posted speed limit is safe for all conditions.

37 / 40

What is the purpose of the supply pressure gauge?

to inform you about how hot the air in the tank is

to inform you if there is too little air in the tank

all of these answers are correct

to inform you of how much air is in the tank

38 / 40

Commerical vehicles typically have this type of brake.

S-Cam brakes

drum brakes

rectangle brakes

stab brakes

39 / 40

Do not tow or push a disabled bus with riders aboard the vehicle, unless:

Bus is on a drawbridge.

Getting off the bus would be unsafe.

You are also a class a tow truck driver.

Your employer tells you to.

40 / 40

This object should be checked to make sure that the cap(s) are on tight, that it is secure, and there are no leaks.

Fuel tank

Air coolant system

Windshield fluid line

Exhaust system

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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