Knowledge Test Class B #1
Class B Driving Test | Maryland 2025 #1 Page 5 of 7
Train for FREE online with our Maryland class B license 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 CDL class B permit in 2025, 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 CDL class B requirements may vary from state to state.
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29 . When changing lanes:
Always use your turn signals and check your mirrors when changing lanes.
30 . A liver can process about ____ per hour.
The faster you drink, the higher your blood alcohol content (BAC) will become. The liver removes alcohol from a body at a fixed rate of about one drink per hour.
31 . Wheel rims that have been welded should:
Wheels or rims that have had welding repairs are not safe to be used.
32 . Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when:
Driving uphill.
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 drops to an unsafe level, the parking brake valve should pop out and spring brakes should come on.
33 . What is a drawback of retarders?
A retarder is a device that helps to slow a vehicle, reducing the need for a driver to use the brakes. However, these devices can be noisy and are not permitted everywhere.
34 . If driving through flowing water or a large puddle, you should:
It is best to avoid driving through large puddles or moving water. If there is no way to avoid driving through water, you should slow down, shift into a low gear, and gently apply the brakes. Pressing linings against the brake drums or discs will keep water, mud, silt, and sand from getting inside the brake mechanisms.
35 . When braking while ABS is activated, you should:
Brake softer than you normally would.
In a vehicle equipped with an Anti-Lock Braking System (ABS), you should apply the brakes in the same manner that you would if you were driving without ABS.
See the exact questions that will be on the 2025 Maryland DMV exam.
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2025 Maryland | Frequently Asked Questions
A CDL Class A license in Maryland allows holders to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 or more pounds, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed is in excess of 10,000 pounds. It typically covers tractor-trailers, truck and trailer combinations, and flatbeds.
A Class A CDL license allows you to operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds. These vehicles typically have a Gross Combination Weight Rating (GCWR) of 26,001 or more pounds, with the vehicle(s) being towed exceeding 10,000 pounds GVWR.
To obtain a Class A CDL license in Maryland, you must be at least 18 years old (21 for interstate driving), possess a valid non-commercial driving license, and pass a medical examination. You'll also need to pass written knowledge tests and a skills test, which includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving examination.
In Maryland, you must be at least 18 years old to qualify for a Class A CDL license. However, please note that if you're under 21, you're only permitted to drive within the state (intrastate). To drive across state lines (interstate) or to carry hazardous materials, you must be at least 21 years old.
Endorsements are not required for a Class A CDL license, but they can expand your driving capabilities. For instance, H endorsement allows you to haul hazardous materials, N endorsement permits you to operate tank vehicles, and T endorsement enables you to tow double or triple trailers. Each endorsement requires passing a specific knowledge test.
The Class A CDL skills test in Maryland encompasses three areas. First, there's a pre-trip vehicle inspection to ensure the vehicle is safe to drive. Next is the basic controls test to assess your ability to control the vehicle. Finally, there's an on-road driving examination where you'll demonstrate your ability to drive safely in various road and traffic conditions.
Yes, there are limitations. Class A CDL license holders in Maryland are subject to federal regulations and state laws. They must not exceed the maximum allowed driving hours, must maintain a logbook, and undergo regular drug and alcohol testing. Restrictions may also be placed on the license due to the driver's medical conditions or lack of certain endorsements.
Yes, in Maryland, the written Class A CDL test can be taken in several languages other than English. These include Spanish and French, among others. However, the Federal Motor Carrier Safety Administration requires all commercial drivers to read and speak English sufficiently to converse with the general public, understand traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, you can request accommodations for the Class A CDL written test due to disability in Maryland. The Motor Vehicle Administration (MVA) provides reasonable accommodations for individuals with disabilities according to the Americans with Disabilities Act (ADA). You should contact your local MVA office in advance to discuss your specific needs and arrange suitable accommodations.
Yes, you can retake the Class A CDL written test in Maryland if you fail on your first attempt. You will need to wait at least 3 days before retaking the test. There may be additional fees for each retest. It's recommended to study thoroughly before reattempting to increase your chances of passing.
