Oklahoma Driver's Examination

Air Brakes #2

FREE Air Brakes Endorsement Test Online | Oklahoma 2024

Train for FREE online with our Oklahoma CDL air brake 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 Class A/Class B driver 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 the requirements for CDL may vary from state to state.

Number of Question 25

Passing Score 20

Number of Tests 20

1 . When leaving your vehicle unattended:

The parking brake should be used.

The parking brake only needs to be used if the vehicle is parked on a slope.

The parking brake should not be used, as it can damage the tires.

In general, you should always use the parking brake when parking your vehicle. However, you should not apply the parking brake if your brakes are very hot or if your brakes are wet and temperatures are below freezing.

2 . You should test the low pressure warning signal by:

Turning on the engine and applying the trailer hand brake.

Rapidly pressing and releasing the brake pedal.

Removing wheel chocks and disengaging the parking brake.

It is essential that your low pressure warning light functions properly. After allowing the system to charge, you can test the warning signal by rapidly applying and releasing the brake pedal. This will release air from the braking system and the warning signal should come on when pressure drops to a dangerous level.

3 . Before driving a vehicle with air brakes, you should ensure that the ____ come on automatically when air pressure falls below 45 psi.

Spring brakes

Parking brakes

Air brakes

Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when air tank pressure falls to a level between 20 and 45 psi. You can do this by chocking the wheels and releasing air from the braking system by stepping on and off the brake pedal. Once the pressure levels drop to an unsafe level, the parking brake valve should pop out and spring brakes should come on.

4 . To make a stop in a vehicle equipped with air brakes, the driver should:

Press the brake pedal down.

Lift the brake pedal up.

Pull out the air brake knob.

To make a normal stop in a vehicle that is equipped with air brakes, you should simply press the brake pedal down.

5 . When you are about to start down a hill, you should switch into a ____ gear.

Higher

Faster

Lower

Before starting down a hill, be sure to switch into a low gear. Gravity will increase your vehicle's speed as you travel downhill.

6 . If the safety relief valve in the air brake system releases air:

The compressor needs more air.

The air pressure has become too high.

The brakes are fully operational.

An air brake system has a safety relief valve, which releases air from the tanks if the pressure gets too high. If the valve must operate, something in the system is wrong and should be addressed by a mechanic.

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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.