Knowledge Test Class A #1
Class A Driving Test | Texas 2026 #1 Page 7 of 10
Train for FREE online with our Texas class A license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a TX CDL class A permit in 2026, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class A requirements may vary from state to state.
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43 . If using air tanks with manually operated drains, how often should you drain the tanks?
Once every 3,000 miles
To prevent the build up of oil and water in a vehicle's air tanks, manually operated air tank drains should be used at the end of each day of driving.
44 . Accelerating roughly is:
Discouraged, as it may confuse other drivers.
When accelerating, speed up smoothly and gradually so your vehicle does not jerk. Rough acceleration can cause mechanical damage.
45 . When traveling at speeds under 40 mph, you should maintain at least ____ of following distance for every 10 feet of your vehicle's length.
Four seconds
When traveling at speeds under 40 mph, you should allow a minimum of one second of following distance for every 10 feet of your vehicle's length. At faster speeds, add at least one additional second.
46 . When checking the engine compartment, you should check all of the following, except:
The fuel level.
When inspecting your vehicle's engine compartment, be sure to check the oil level; the radiator coolant level and the condition of the hoses; the power steering fluid level and the condition of the hoses, if applicable; the windshield washer fluid level; the battery connections, fluid level, and tie-downs; the automatic transmission fluid level; and the condition and tightness of the belts. Additionally, check for any leaks in the engine compartment and cracked or worn electrical wiring insulation.
47 . A visual low pressure warning signal should activate before air pressure drops to a level between:
40 and 60 psi.
A visual low pressure warning signal should activate before air pressure drops to a level between 55 and 75 psi. This signal could be a light, a buzzer, or a wig wag.
48 . When crossing railroad tracks, you should:
Stay in your lane.
When crossing railroad tracks during the on-road driving skills test, you must not stop, switch gears, pass another vehicle, or change lanes while any part of your vehicle is in the crossing.
49 . If another driver is following you too closely, you should do all of the following, except:
Avoid relying on tricks to help others pass.
If you are being followed too closely, you should increase your following distance, avoid making quick moves, and avoid relying on tricks (such as flashing your lights) to help other drivers pass. Speeding up may only increase the danger by causing the tailgater to continue tailgating you at a higher speed.
See the exact questions that will be on the 2026 Texas DMV exam.
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Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
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2026 Texas | Frequently Asked Questions
To secure a CDL Bus endorsement in Texas, you must first possess a Commercial Driver's License (CDL). Next, pass the Passenger Vehicles endorsement written test. Then, get a school bus endorsement by passing the School Bus endorsement written test. Lastly, complete a driving skills test in the type of vehicle you'll be driving. This includes pre-trip inspection, basic vehicle control and on-road driving.
To obtain a CDL Bus license in Texas, you must have a valid Texas driver's license, be at least 18 years old (21 if driving interstate), and pass a medical examination. You'll also need to pass the CDL general knowledge test, the passenger transport test, and the school bus endorsement test. Finally, you must successfully complete the CDL skills test in a school bus.
Yes, specific training is required for a CDL Bus endorsement in Texas. You must pass the general knowledge test, Passenger Endorsement, and School Bus Endorsement tests. Additionally, you'll need to pass a driving skills test in a vehicle similar to the bus you plan to drive. Some applicants find it helpful to take professional driving courses before testing.
CDL Bus licenses in Texas fall under Class B or Class C. Class B is for vehicles designed to carry 24 passengers or more, including the driver. This includes school and city buses. Class C is for smaller vehicles designed to carry 16 to 23 passengers, including the driver. Both require the Passenger (P) endorsement, and school buses additionally require the School Bus (S) endorsement.
No, you cannot use your personal vehicle for the CDL Bus driving test in Texas. The vehicle you use must match the class of CDL you are applying for. Therefore, if you're applying for a CDL Bus license, you'll need to test in a bus that fits the classification of the license you're seeking.
The CDL Bus driving test in Texas evaluates skills such as pre-trip vehicle inspection, basic vehicle control, and on-road driving. You'll be assessed on maneuvers like stopping, turning, merging into traffic, and navigating intersections. Also, proper use of mirrors, signaling, speed control, and responding appropriately to road signs and traffic signals will be evaluated.
Yes, additional medical prerequisites are required for a CDL Bus endorsement in Texas. Applicants must pass a Department of Transportation (DOT) physical examination every 24 months. This includes vision and hearing tests, a blood pressure check, and checks for other physical conditions that could affect driving ability.
No, it is not permissible to transport passengers without a valid CDL Bus endorsement in Texas. This endorsement is required for drivers who wish to drive a bus or vehicle designed to transport 16 or more passengers, including the driver. Operating such a vehicle without the proper licensing can lead to significant fines and penalties.
In Texas, you can add a CDL Bus endorsement to your existing license. You don't need to apply for a new license. However, you'll need to pass the Passenger Vehicles written test and a skills test in the vehicle type that matches the class and type of vehicle you'll be driving.
Yes, there are certain restrictions for drivers with a CDL Bus endorsement in Texas. For example, a driver with a CDL Bus endorsement cannot drive a bus under the influence of alcohol or drugs, or commit traffic violations. Also, they are subject to random drug and alcohol testing as part of the Federal Motor Carrier Safety Administration regulations.
