Maryland Driver's Examination

Air Brakes #1

FREE Air Brakes Endorsement Test Online | Maryland 2024

Train for FREE online with our Maryland 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 MD 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 . Brake fade is a result of:

Brakes being exposed to sunlight.

Brakes being exposed to moisture.

Excessive use of the brakes.

If brakes are overused, they can become too hot. This overheating causes them to fade, making them less effective at slowing the vehicle.

2 . 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.

3 . 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.

4 . To use the stab braking method in an emergency situation, you should:

Apply the brakes completely until the wheels lock up, release the brakes until the wheels start rolling, then repeat the process.

Apply the brakes about halfway, but keep the wheels rolling.

Fully apply the brakes, let the wheels lock up, and hold the brake pedal down, keeping the wheels locked until the vehicle stops.

Apply the emergency brake.

The stab braking method for emergency stops involves fully applying the brakes until they lock up. The brakes are then released until the wheels start rolling, then the process is repeated.

5 . What is removed when an air tank is drained?

Water and oil

Ammonia

Wood

Chlorine

In an air brake system, the air storage tanks are equipped with drains to allow water and compressor oil to be removed. The water and oil can damage the brakes if left to accumulate in the system.

6 . A low air pressure warning signal:

Is not recommended on vehicles with air brakes.

Is required on vehicles with air brakes.

Is optional on vehicles with air brakes.

Any vehicle with air brakes must be equipped with a low air pressure warning signal.

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2024 Maryland | Frequently Asked Questions

To secure a CDL Bus endorsement in Maryland, you need to have a valid Maryland CDL. Then, pass the Passenger Transport Test and the School Bus Endorsement Test. Complete a school bus driver training program approved by the Maryland Department of Education. Lastly, pass a background check and submit a medical examiner's certificate.

To obtain a CDL Bus license, you need a valid driver's license, pass the written CDL general knowledge test and the passenger endorsement test. Complete a training program specific to driving a bus. Pass a bus driving skills test, which includes a pre-trip vehicle inspection, basic vehicle control, and on-road driving. Lastly, pass a medical examination.

Yes. To obtain a CDL Bus endorsement, you must first have a Commercial Driver's License (CDL). Additionally, you need to pass the Passenger Transport Test and the School Bus Endorsement Test. Some states, including Maryland, also require completion of a state-approved school bus driver training program. Practical driving experience is highly recommended.

CDL Bus licenses in Maryland fall under three classifications: Class A, B, and C. Class A is for vehicles with a combined weight over 26,001 lbs. where the towed vehicle is over 10,000 lbs. Class B is for single vehicles over 26,001 lbs. or towing a vehicle not over 10,000 lbs. Class C is for vehicles designed to transport 16 or more passengers including the driver.

No, you cannot use your personal vehicle for the CDL Bus driving test. The vehicle you use must match the type and class of license you're applying for. Therefore, you should use a commercial bus for the test. This rule ensures you can operate the vehicle safely under real-world conditions.

During the CDL Bus driving test, you're evaluated on specific skills such as vehicle inspection, basic controls (backing, turning, stopping), and on-road driving. This includes navigating through intersections, railway crossings, curves, and turns. Also assessed are your abilities to manage passenger entry and exit, respond to emergencies, and handle specific school bus situations.

Yes, additional medical prerequisites are required for a CDL Bus endorsement in Maryland. Applicants must pass a Department of Transportation (DOT) medical examination, which includes vision and hearing tests. They must also demonstrate physical ability to perform bus driver duties, such as operating controls, opening emergency exits, and assisting passengers if necessary.

No, it's not permissible to transport passengers without a valid CDL Bus endorsement in Maryland. This endorsement is required for drivers who wish to operate a vehicle designed to carry 16 or more passengers, including the driver. Driving such a vehicle without the appropriate endorsement could result in significant fines and penalties.

The CDL Bus endorsement can be added to your existing CDL in Maryland. You don't need to apply for a new license. However, you'll need to pass the passenger transport test and possibly a skills test in a bus-like vehicle. Also, you must maintain a valid DOT medical card. It's recommended to check with the MVA for specific requirements.

Yes, drivers with a CDL Bus endorsement in Maryland must adhere to specific restrictions and limitations. These include obeying all traffic laws, maintaining a clean driving record, passing regular physical examinations, and not driving under the influence of alcohol or drugs. Also, drivers must ensure the safety of all passengers and comply with regulations regarding maximum driving hours.