Knowledge Test Class B #2
Class B Driving Test | Maryland 2026 #2 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 2026, 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 . What color is the low air pressure warning light?
Purple
A low air pressure warning signal is required in vehicles with air brakes. The warning light is usually red and may be accompanied by a buzzer.
30 . Cargo on flatbed trailers should be:
Pushed to one side.
On flatbed trailers or trailers without sides, cargo must be tied down to keep it from shifting or falling off in transit.
31 . Improperly loaded cargo:
Cargo that is improperly loaded or secured is a significant hazard to the driver, as well as others on or near the road.
32 . Air brakes are:
A tool to improve fuel efficiency.
As long as the brakes are properly maintained, using air brakes is a safe and effective method of stopping large, heavy vehicles.
33 . 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.
34 . If feeling tired while driving, it is best to:
If you begin to feel tired while driving, the only safe action to take is to stop and get some sleep. Trying to fight the fatigue and press on is very dangerous and can result in a fatal crash. You should not rely on artificial stimulants; these may help keep you awake a while longer, but they won't make you more alert.
35 . About how many drinks does it take for a 200-pound person to reach a 0.02 percent blood alcohol concentration (BAC)?
Four
Alcohol impairment begins long before the legal limit is reached. A 200-pound person will reach a blood alcohol concentration (BAC) of 0.02 percent after a single drink.
See the exact questions that will be on the 2026 Maryland DMV exam.
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2026 Maryland | Frequently Asked Questions
To acquire a CDL Tank endorsement in Maryland, you must first have a Commercial Driver's License (CDL). Next, study for the Tank endorsement test using Maryland's CDL manual. Once ready, schedule and pass the written test at your local Motor Vehicle Administration (MVA) office. Upon passing, the Tank endorsement will be added to your CDL.
To obtain a Commercial Driver's License (CDL) Tank endorsement in Maryland, you must have a valid CDL. You then need to pass the Tank Vehicle endorsement written test, which covers topics like inspecting tank vehicles, safe driving, and handling emergencies. The Maryland Motor Vehicle Administration (MVA) provides study materials for the test.
While Maryland does not specifically require training or experience to obtain a CDL Tank endorsement, passing the Tank Vehicle endorsement written test is mandatory. Gaining practical experience or undergoing training can be beneficial for understanding the nuances of operating a tank vehicle and could improve your chances of passing the test.
Yes, an additional written test is required to obtain a CDL Tank endorsement in Maryland. This test covers the specifics of operating a tank vehicle, including inspection, safe driving, and handling emergencies. It is separate from the general CDL written test and must be passed to receive the endorsement.
The written test for the CDL Tank endorsement in Maryland includes subjects such as the proper loading and unloading of cargo, the safe operation of tank vehicles, emergency procedures, and the recognition of potential hazards. Additionally, it covers topics like tank vehicle inspection, controlling liquid surge, and understanding the effects of liquid movement during acceleration, braking, and turning.
The CDL Tank endorsement written test assesses knowledge on specific aspects of operating a tank vehicle. These include understanding the tank's structure, inspecting the vehicle before and after trips, safe driving techniques, knowledge about high center of gravity, managing surge, handling emergencies, and awareness of different liquids and gases that may be transported.
Drivers with a CDL Tank endorsement are subject to federal and state regulations regarding hours of service, vehicle maintenance, and reporting. They must also adhere to specific safety procedures when loading, unloading, and transporting hazardous materials. Furthermore, they are required to maintain a clean driving record and may face restrictions based on health conditions.
No, liquid or gas materials cannot be transported without a valid CDL Tank endorsement. This endorsement is specifically required for commercial drivers who operate tank vehicles that transport liquid or gaseous materials. Driving such vehicles without the proper endorsement is illegal and can result in severe penalties, including fines and suspension of the driver's Commercial Driver's License (CDL).
The CDL Tank endorsement can be added to your current commercial driver's license. You don't need to apply for a fresh license. However, you will need to pass the Tank Vehicle endorsement written test and pay the required fee to add this endorsement to your CDL. Always check with your local DMV for specific requirements.
Yes, to handle hazardous materials with a CDL Tank endorsement, drivers must also obtain a HazMat endorsement. This involves passing a written test, submitting to a TSA background check, and paying an additional fee. Drivers must follow strict safety protocols when handling these materials and are subject to regular inspections.
