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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Texas CDL combination test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The test covers the combination vehicles section of the Texas CDL Manual. Take this practice test now to prepare for the actual TX CDL combination test!
1.
If you smell exhaust fumes in the cab, you should:
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wait for the next stop, then inspect your vehicle.
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open the windows.
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stop immediately.
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remember to conduct a post-trip inspection.
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2.
Which of the following is NOT part of the procedure to stop a trailer skid?
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Releasing the brakes
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Using the trailer hand brake to get traction back
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Not using the hand brake
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Recognizing the skid
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3.
In a vehicle with a dual air brake system:
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one system supplies air to the trailer.
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both systems typically operate the regular brakes on the rear axle.
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each system has its own air tanks.
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All of the above.
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4.
When backing, as soon as you see the trailer getting off the proper path, you should:
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turn the top of the steering wheel in the opposite direction of the drift.
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to keep a firm grip on the steering wheel and continue backing.
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turn the top of the steering wheel in the direction of the drift.
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None of the above.
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5.
Where are shut-off valves?
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At the front of each trailer.
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On converter dollies.
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At the front and back of each trailer.
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At the back of each trailer.
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6.
The best way to recognize that your trailer has started to skid is:
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by using retarders.
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by hearing squeaking noises from the wheels.
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by seeing it in your mirrors.
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None of the above.
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7.
The use of brakes on a steep downgrade is:
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the main braking factor.
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much more effective than the engine braking effect.
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a supplement to the braking effect of the engine.
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dangerous, and should be avoided at all costs.
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8.
You should use chocks when parking a trailer without spring brakes because:
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it is required by law.
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the brakes will hold only as long as there is air pressure in the trailer air tank.
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it helps prevent brake failure.
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it helps prevent skids.
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9.
When using a fire extinguisher, you should stay:
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at whatever distance you think is safe.
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as far away from the fire as possible.
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at least 10 feet away from the fire.
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as close to the fire as possible, without getting burnt.
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10.
Do not use the trailer hand valve in driving because:
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the brakes can overheat and lose their braking power.
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the trailer emergency brakes will come on.
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of the danger of making the trailer skid.
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All of the above.
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Frequently Asked Questions
Under the Graduated Driver License (GDL) program, the age requirements for applicants under 18 are as follows:
- You must be at least 15 years old for a learner license.
- You must be between 16 and 17 years of age to apply for a provisional driver license.
- You must be 18 years old or older to receive a class C driver license.
If you are under 25, you need to enroll in a driver education course and you can take the DMV written test at the driving school. After passing the exam, you have to visit a Texas driver license office to obtain a learner license. Alternatively, you can choose to take the permit test at any driver license office.
You'll need to bring these documents to a driver license office:
- A completed application signed by your parent/legal guardian, either at the driver license office or in front of a public notary.
- Proof of U.S. citizenship or lawful presence.
- Two proofs of your Texas residency.
- Proof of identity.
- Proof of your Social Security number.
- Texas Vehicle Registration and proof of insurance of your vehicle (if available).
- Texas Driver Education Certificate and proof of passing the DMV written test (if applicable).
- Verification of school enrollment, or a high school diploma or equivalent (for minors).
The DMV written test in Texas is available in English or Spanish and you need to understand road signs written in English. If needed, you can bring a translator, but they can only assist you in communicating with the specialist before and after the exam.
To prepare for the DMV written test, read the Texas Driver's Handbook and take our free practice tests to verify your knowledge. Topics covered on the exam include road signs, parallel parking, turning, passing a vehicle, yielding the right of way, etc. Once your scores are good, you are ready for the real test.
The Texas DMV written test consists of 30 multiple-choice questions and is based on the information provided in the manual. Remember, you have 1 hour to complete the exam. Taking numerous practice tests and thoroughly studying the handbook will increase your chances of success.
You must answer at least 21 questions correctly, and you can miss up to 9 questions to pass the test. The minimum score required to succeed in the exam is 70%. Take your time during the test to make sure you understand the questions well.
For new drivers in Texas, specific restrictions apply.
If you have a learner license:
- You must drive only under the supervision of a licensed adult aged 21 or older seated in the front passenger seat.
If you have a provisional driver license:
- You are not permitted to drive with more than one passenger under 21 who is not a family member.
- Driving a motor vehicle between midnight and 5:00 a.m. is prohibited, except for work, school-related activities, or medical emergencies.
Additionally, all drivers under 18 years old are prohibited from using any wireless communication device, except in emergencies. Furthermore, drivers under 21 are prohibited from operating a vehicle after consuming any amount of alcohol (Zero Tolerance law).
Your learner license will remain valid until your 18th birthday. Use this period to fulfill all the necessary requirements before applying for a provisional driver license. If you are under 18 years old, you can renew it in person at a Texas driver license office.
After the first failure, your application will be held for 90 days. After 90 days or after three failed exams, you will have to submit a new application and pay another fee. If you find the DMV written test difficult, sign up for DMV Premium, which offers numerous resources and practice tests to improve your preparation.