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The CDL general knowledge test is required to be taken by all CDL applicants. The Texas CDL test consists of 50 questions. To pass, you must correctly answer at least 40 questions (80%). The general knowledge test covers the contents of the Texas CDL Manual.
All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Vehicle Inspection Test, Basic Control Skills Test, Road Test. In addition, the Class A CDL test will include questions based on the Combination Vehicles section. Take this CDL practice test now to prepare for the actual TX general knowledge test!
To get your CDL, you must pass both the knowledge and skills tests. CDL knowledge tests include: General Knowledge, Passenger Transport, Air Brakes, Combination Vehicles, Hazardous Materials, Tanker Vehicles, Doubles/Triples, School Bus, Firefighter. Depending on what class of license (A, B or C) and endorsements you need, you must take one or more knowledge tests. A special endorsement is also required to drive certain types of vehicles. The following endorsements may be used with a Class A, B or C CDL: HazMat (H), Tank Vehicles (N), Tank Vehicles Transporting Hazardous Materials (X) and Passenger Transport (P). The School Bus endorsement (S) is only available for Class A or B CDL, and the Doubles/Triples endorsement (T) is only available for Class A driver's licenses.
1.
You will lose your CDL privileges for at least one year for a first offense for:
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driving a CMV if your BAC is .04% or higher.
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leaving the scene of an accident involving a CMV.
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refusing to undergo blood alcohol testing.
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All of the above.
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2.
When backing your vehicle, it's not recommended to:
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back towards the right side.
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back and turn towards the driver's side.
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back as slow as possible.
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use the lowest reverse gear.
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3.
______ is operating a motor vehicle with the intent of doing harm to others.
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Road rage
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Aggressive driving
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Excessive driving
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All of the above.
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4.
On a level surface:
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wheel chocks should not be used when the brakes are very hot.
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you should use wheel chocks to hold the vehicle.
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wheel chocks make it easier for the vehicle to roll.
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should never be used if the brakes are very wet.
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5.
Your driver license doesn't have the hazardous materials endorsement. You can drive a vehicle that carries hazardous materials if:
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one of your passengers has the hazardous materials endorsement.
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you are transporting hazardous materials for less than 50 miles.
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the vehicle does not require placards.
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All of the above.
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6.
A high center of gravity means:
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the spring brakes will come fully on.
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a rollover is less likely.
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you are more likely to tip over.
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you'll have better traction.
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7.
When driving at night, you should dim your lights within ______ of an oncoming vehicle.
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500 feet.
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400 feet.
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300 feet.
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250 feet.
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8.
You are more at risk of being fatigued:
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when driving during the day.
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when stopping periodically during long trips.
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after getting more than 8 hours of sleep.
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when driving alone.
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9.
When making a left turn at an intersection, you should:
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start your turn before reaching the center of the intersection.
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always use your horn.
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always take the left turn lane if there are two turning lanes.
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reach the center of the intersection before you start the left turn.
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10.
If your brakes get wet, it can cause them:
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to be weak.
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to grab.
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to apply unevenly.
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All of the above.
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