Oklahoma Driver's Examination

Combination #2

FREE CDL Combination Vehicles Practice Test Online | Oklahoma 2024

Train for FREE online with our Oklahoma 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 OK combination license in 2021, 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.

Number of Question 20

Passing Score 16

Number of Tests 20

1 . Older trailers are not equipped with spring brakes. This means that if the air supply for a vehicle's air braking system leaks away:

The trailer will stop normally.

The trailer will not have brakes.

The trailer will speed up.

Older trailers do not have spring brakes. This means that if the air supply in an older trailer's air tank has leaked away, there will be no working brakes connected to the trailer and its wheels will turn freely.

2 . If a load is placed on one side of a trailer, the trailer:

May lean during turns.

May add extra support during turns.

May be easier to steer during turns.

Positioning the weight of a load on one side of a trailer may cause the trailer to lean to that side, increasing the risk of a rollover during turns and lane changes.

3 . Fully-loaded rigs:

Usually are very responsive to steering.

Are more likely to roll over than empty rigs.

Can stop quickly.

Fully-loaded rigs are more vulnerable to rolling over than empty rigs because the weight of the cargo gives the vehicles higher centers of gravity.

4 . During a trip, landing gear should be:

Completely raised.

Completely lowered.

Skimming the pavement.

Landing gear, or trailer supports, should always be completely raised before a vehicle is driven. Landing gear that is not entirely raised could catch on railroad tracks or other hazards on the roadway.

5 . What does an Anti-Lock Braking System (ABS) do?

It allows a vehicle's wheels to lock up.

It prevents a vehicle's wheels from locking up.

It makes turning a vehicle easier.

An Anti-Lock Braking System (ABS) helps prevent wheel lockup during hard braking. If ABS detects impending lockup, it reduces braking pressure to a safe level.

6 . When driving while pulling trailers, you should:

Make sudden turns with the steering wheel.

Avoid making sudden moves.

Push the accelerator to the floor when starting from a stop.

You should always steer gently and smoothly while pulling a trailer. Making sudden steering moves could cause the trailer to tip over.

7 . If the emergency air line loses pressure:

The service brakes will activate.

The tractor protection valve will close.

The rear trailer will detach from the combination.

The tractor protection valve keeps air in the trailer's braking system should the trailer break away or develop a leak. A loss of air pressure in the emergency line will cause the tractor protection valve to open and the emergency trailer brakes to activate.

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2024 Oklahoma | Frequently Asked Questions

To secure a CDL Bus endorsement in Oklahoma, you need to apply through the Department of Public Safety. You must already possess a Commercial Driver's License (CDL). Then, pass the passenger transport test, which includes both written and skills tests. The written test covers topics like loading/unloading passengers, emergency procedures, and vehicle inspections. The skills test includes vehicle inspection, basic controls, and on-road driving.

Obtaining a CDL Bus license in Oklahoma requires you to have a Commercial Driver's License (CDL) first. Then, you must pass the passenger transport test, which includes a written test and skills tests. The written test covers topics like vehicle inspection, passenger loading/unloading, and emergency procedures. The skills test involves demonstrating vehicle inspection, basic controls, and on-road driving abilities.

Yes, specific training is necessary for a CDL Bus endorsement in Oklahoma. You must pass both a written and skills test that covers vehicle inspection, passenger loading and unloading, and emergency procedures. This usually requires some form of training or experience. Some drivers gain this experience on the job, while others may complete a professional training program.

CDL Bus licenses fall into three classifications based on the vehicle's size and purpose: Class A, B, and C. Class A is for vehicles towing trailers over 10,000 pounds. Class B is for vehicles not towing trailers over 10,000 pounds, like city buses. Class C is for vehicles designed to transport 16 or more passengers including the driver, or hazardous materials.

No, you cannot use your personal vehicle for the CDL Bus driving test in Oklahoma. The vehicle used for the test must match the class and type of vehicle you plan to drive with your CDL. For a bus endorsement, you would need to test in a bus. You may rent a bus or use one provided by a training program or employer.

During the CDL Bus driving test in Oklahoma, you'll be evaluated on several specific skills. These include pre-trip vehicle inspection, backing maneuvers, navigating intersections and railway crossings, controlling the vehicle, and stopping at designated points. You'll also be tested on loading and unloading passengers, use of mirrors, and emergency evacuation procedures.

Yes, additional medical prerequisites are necessary for a CDL Bus endorsement. Applicants must pass a Department of Transportation (DOT) physical exam every 24 months to ensure they're physically capable of safe driving. This includes vision and hearing tests, blood pressure monitoring, and checks for conditions like diabetes or heart disease that could affect driving ability.

No, it is not permissible to transport passengers without a valid CDL Bus endorsement in Oklahoma. Operating a commercial vehicle like a bus without the proper license and endorsements can lead to significant fines, penalties, and even jail time. Always ensure you have the correct licensing to legally and safely transport passengers.

In Oklahoma, you can add a CDL Bus endorsement to your existing commercial driver's license. You don't need to apply for a new license. However, you will have to pass the Passenger Transport Test and a skills test in a passenger vehicle to get this endorsement.

Yes, there are restrictions for drivers with a CDL Bus endorsement in Oklahoma. These may include the type of bus you can drive, based on the specific endorsements you have. Furthermore, you must comply with hours of service regulations, maintain a clean driving record, and pass regular physical examinations to ensure you are physically capable of operating a commercial vehicle safely.