Combination #1
Combination Vehicles Practice Test | Texas 2026 #1
Train for FREE online with our Texas CDL combination vehicle 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 combination license 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 DMV requirements for issuing a combination license may vary from state to state.
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1 . ____ are the cause of more than half of all accident-related truck driver deaths.
Pedestrians
More than half of all accident-related truck driver deaths are a result of truck rollovers. To help prevent a rollover, be sure to load cargo low to the ground and centered on your rig. Take corners slowly and carefully.
2 . During a trip, which shut-off valves should be open?
No shut-off valves should be open.
When starting a trip, be sure that all shut-off valves are in the open position, except for the last valves on the rear trailer. It is important that air reaches the brakes on all trailers and that the air is not able to escape from the back of the vehicle.
3 . An air supply control in its "emergency" position will:
Accelerate the vehicle.
Tractor protection controls in older vehicles may be operated by levers instead of knobs. If an air supply control is set in its "emergency" position, the air supply will be stopped and the trailer emergency brakes will be applied.
4 . One function of the emergency air line is to:
Control the ability to maneuver during bad weather conditions.
The emergency air line (also known as the supply line) has two functions. The first is to supply air to the trailer air tanks, and the second is to control the emergency brakes on combination vehicles.
5 . The service air line is attached to the:
Steering wheel.
The service air line carries air and is controlled by either the foot brake or trailer hand brake. The service air line is attached to relay valves, which allow the trailer brakes to be applied quickly.
6 . A combination vehicle has:
Four air lines.
Combination vehicles have two air lines: a service line and an emergency line.
7 . Avoid needing to make sudden lane changes by:
Pulling off the road and waiting when there is high traffic.
Making a sudden lane change can be dangerous when driving a combination vehicle. Avoid the need to make a sudden lane change by looking down the road for upcoming obstacles that will require you to change lanes.
2026 Texas | Frequently Asked Questions
To acquire a CDL Passenger endorsement in Texas, you must first have a valid Texas CDL. Then, you need to pass the passenger transport test. This involves studying the Texas CDL handbook, especially the sections on passenger transport. After studying, schedule and pass the written knowledge test at a Texas DPS office.
To obtain a CDL Passenger license in Texas, you must meet the following criteria: be at least 21 years old, possess a valid Texas driver’s license, pass a Department of Transportation physical exam, successfully complete a commercial driver's license general knowledge test, and pass a passenger transport test. Also, you must demonstrate your ability to safely operate the type of vehicle you plan to drive.
While specific training isn't legally required to secure a CDL Passenger endorsement in Texas, it is highly recommended. Experience driving large vehicles can be beneficial. You must pass a written knowledge test, and training can help prepare for this. Some opt for professional training programs to gain comprehensive knowledge and practical skills before taking the test.
Yes, to get a CDL Passenger endorsement in Texas, you must pass a written knowledge test specifically for passenger transport. This test covers topics like vehicle inspection, loading and trip start, on the road, after-trip vehicle inspection, prohibited practices, and use of brake-door interlocks. Preparation involves studying the relevant sections of the Texas CDL handbook.
During the CDL Passenger endorsement skills test in Texas, you'll need to demonstrate your ability to inspect the vehicle, load and unload passengers safely, use emergency exits, and respond to emergencies. You'll also need to showcase your driving skills including turning, backing up, parking, and navigating through traffic or around obstacles while maintaining passenger safety.
No, you cannot legally transport passengers in Texas without a valid Commercial Driver's License (CDL) with a Passenger (P) endorsement. This endorsement is required for drivers who wish to drive a vehicle that can carry 16 or more passengers, including the driver. Driving without the necessary endorsement could result in heavy fines and penalties.
Yes, you can add a CDL Passenger endorsement to your existing CDL in Texas. You don't need a new license, but you must pass the passenger transport written test. After passing the test, the endorsement will be added to your existing CDL. This allows you to legally drive vehicles designed to carry 16 or more passengers.
Yes, there are restrictions for drivers with a CDL Passenger endorsement in Texas. One key restriction is the "P" restriction, which prohibits drivers from operating a passenger vehicle that is not equipped with air brakes if their driving test was taken in a vehicle without them. Additionally, drivers must follow all federal and state regulations for commercial drivers.
Yes, there are age-related prerequisites and limitations for acquiring the CDL Passenger endorsement in Texas. You must be at least 18 years old to obtain a CDL with a Passenger endorsement, but you can only operate within the state. To operate across state lines or transport hazardous materials, you must be at least 21 years old.
With a CDL Passenger endorsement in Texas, you can operate vehicles designed to transport 16 or more passengers, including the driver. This includes city buses, school buses (with a School Bus endorsement), shuttle buses, charter buses, and some types of vans. However, specific vehicle types may require additional endorsements.