Air Brakes Endorsement Test | Maryland 2024 #1

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 2024, 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

A CDL Class B license in Maryland allows the holder to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds. This typically includes buses, dump trucks, delivery trucks, and garbage trucks.

A Class B CDL license in Maryland permits the operation of single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 or more pounds, or such vehicles towing another not exceeding 10,000 pounds. This includes buses, dump trucks, tow trucks, delivery trucks, straight trucks and garbage trucks.

To acquire a Class B CDL license in Maryland, you must be at least 18 years old, possess a valid non-commercial driver's license, and pass a medical examination. You'll also need to pass the CDL general knowledge test and any additional tests for endorsements. Lastly, you must successfully complete a skills test which includes a pre-trip vehicle inspection, a basic controls test, and a road test.

In Maryland, to qualify for a Class B Commercial Driver's License (CDL), you must be at least 18 years old for intrastate driving (within Maryland only) and at least 21 years old for interstate driving (across state lines). You also need a valid non-commercial driver's license.

Specific endorsements aren't necessary for a Class B CDL license, but they can expand your driving capabilities. Endorsements like Passenger (P), School Bus (S), and Tank Vehicle (N) require additional tests. For example, if you plan to drive a school bus or tank truck, you would need the appropriate endorsements.

The Class B CDL skills assessment in Maryland includes three main parts: a pre-trip vehicle inspection to test your ability to assess the safety of your vehicle, a basic control skills test to evaluate your ability to maneuver and control the vehicle, and an on-road driving test to assess your driving skills in various traffic situations.

Yes, Class B CDL license holders in Maryland are limited to operating vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 lbs. or more, or towing vehicles not exceeding 10,000 lbs. They cannot operate Class A vehicles unless they have the appropriate endorsements. Additionally, interstate drivers must be at least 21 years old.

Yes, in Maryland, the written Class B CDL test can be taken in several languages other than English. These include Spanish, French, and Korean among others. However, federal regulations require that all CDL holders must be able to read and speak English sufficiently to converse with the general public and understand highway traffic signs and signals.

Yes, you can request test accommodations for the Class B CDL written exam in Maryland due to a disability. The Motor Vehicle Administration (MVA) provides reasonable accommodations such as sign language interpreters, extra time, and accessible testing equipment. It's recommended to make your request in advance to ensure the necessary arrangements can be made.

If you don't pass the Class B CDL written test in Maryland, you can retake it. However, you'll have to wait at least one business day before retesting. There's no limit to the number of attempts you can make to pass the test, but a retesting fee may apply each time. It's advised to study thoroughly to increase your chances of passing.