Knowledge Test Class A #2
Class A Driving Test | Minnesota 2025 #2 Page 7 of 7
Train for FREE online with our Minnesota class A 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 MN CDL class A 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 A requirements may vary from state to state.
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43 . What should happen before the air pressure in an air brake system tank falls below 55 psi?
The low air pressure warning signal must activate before the air supply pressure drops below 55 psi in the air tank. If the warning signal does not turn on when being tested during an inspection, the vehicle is not safe to drive.
44 . When entering a curve, you should:
Take the vehicle out of gear.
Always reduce your speed and downshift before entering a curve.
45 . Before starting down a hill:
To counteract the force of gravity, you should always slow down and shift into a lower gear before starting down a hill.
46 . If coolant has to be added to a system without a recovery tank, you should:
Wait for the engine to cool before adding coolant.
Before adding coolant to a system without a recovery or overflow tank, you must turn the engine off and wait until it cools. Use gloves or a thick cloth to protect your hands. To release the pressure seal, turn the radiator cap slowly to the first stop.
47 . Header boards are used to protect the driver from cargo in the event of a crash.
The function of a front-end header board (also called a "headache rack") is to protect the driver from being injured by moving cargo in the event of a crash or sudden stop.
48 . When approaching a railroad crossing, you should:
You should not rely solely upon the presence of warning signals, gates, or flaggers to alert you to the approach of a train. Be especially alert to approaching trains at crossings that are not controlled by gates or signals. At any railroad crossing, you should operate under the assumption that a train is coming.
49 . Water should be added to the compressed air in an air brake system to improve the effectiveness of the system.
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Tanks must be drained regularly to remove this build-up.
50 . At dawn or dusk, it is helpful to drive with your lights turned on.
At times when visibility is low, you should turn your headlights on to the low beam setting. If you are having a difficult time seeing others, they are probably having a difficult time seeing you.
2025 Minnesota | Frequently Asked Questions
A CDL Class B license in Minnesota allows the holder to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, or a vehicle towing another not exceeding 10,000 pounds. This includes buses, farm labor vehicles, and any vehicle designed to transport 24 passengers or more, including the driver.
A Class B CDL (Commercial Driver's License) in Minnesota allows the holder to operate single vehicles with a GVWR (Gross Vehicle Weight Rating) of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds. This includes straight trucks, large buses, segmented buses, and dump trucks with small trailers.
To acquire a Class B CDL license in Minnesota, you must be at least 18 years old (21 for interstate driving), have a valid Minnesota driver's license, pass a vision test, and successfully complete a knowledge test for the type of vehicle you plan to drive. Additionally, you must pass a skills test, which includes a pre-trip vehicle inspection, basic controls test, and on-road driving examination.
In Minnesota, you must be at least 18 years old to qualify for a Class B CDL license. However, it's important to note that while this age allows you to operate commercial vehicles within the state (intrastate), you must be at least 21 years old to drive commercial vehicles across state lines (interstate).
While not always necessary, specific endorsements may be required for a Class B CDL license in Minnesota depending on the type of vehicle you plan to drive or the cargo you intend to carry. These endorsements could include passenger, school bus, tanker, hazardous materials (HazMat), or combination vehicle endorsements. Each endorsement requires passing additional knowledge and skills tests.
The Class B CDL skills assessment in Minnesota encompasses three areas: pre-trip vehicle inspection, basic vehicle control, and on-road driving. The pre-trip inspection tests your ability to assess the safety of your vehicle. Basic control tests your ability to maneuver and control the vehicle. On-road driving tests your ability to safely operate the vehicle in various traffic situations.
Class B CDL license holders in Minnesota are restricted to operating vehicles under 26,001 lbs. They can't operate Class A vehicles unless they have the appropriate endorsements. Additionally, they may be limited by any restrictions noted on their license, such as "no air brake equipped vehicles", "automatic transmission only", or "no passengers" in commercial buses or vans.
Yes, in Minnesota, the written Class B CDL test is available in several languages other than English. However, federal regulations require that all CDL holders must be able to read and speak English sufficiently to converse with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, you can request accommodations for the Class B CDL written exam if you have a disability. The Minnesota Department of Public Safety is committed to providing equal access to its services. Contact them directly or visit their website for information on how to request accommodations. It's advisable to make your request well in advance of your scheduled test date.
Yes, if you don't pass the Class B CDL written test in Minnesota, you can retake it. However, you must wait until the next day to retake the test. There is no limit to the number of times you can retake the test, but a retesting fee will be charged each time after the first two attempts.