Knowledge Test Class B #1
Class B Driving Test | Alabama 2025 #1 Page 7 of 7
Train for FREE online with our Alabama 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 AL 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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43 . During an applied leakage test, the maximum leakage rate for a single vehicle with air brakes is:
4 psi in one minute.
It is important to know the maximum air loss rate that is safe for your specific vehicle. A single vehicle with air brakes should have a leakage rate no higher than 3 psi in a minute during an applied leakage test.
44 . When starting a vehicle, the coolant temperature gauge should:
Flash until it reaches the normal operating range.
Keep an eye on the gauges after starting the engine. The coolant temperature gauge should begin a gradual rise to the normal operating range.
45 . Front brake limiting valves were intended to:
Remove uncertainty when applying the brakes.
Some older vehicles with air brakes have front brake limiting valves. These valves were intended to reduce the risk of front wheels skidding. However, research has shown that such devices are unnecessary, so they should be left in the "normal" position.
46 . ____ is a thin layer of ice that forms on road surfaces.
Sharp ice
Black ice is a thin layer of ice that is clear enough for the road surface to be seen through it. A road covered in black ice may look like it is merely wet. You should be very careful when temperatures are below freezing and the road looks wet.
47 . When changing lanes, you should not:
Always signal and check your mirrors when turning and changing lanes.
48 . If the safety relief valve in the air brake system releases air:
An air brake system has a safety relief valve, which releases air from the tanks if the pressure gets too high. If the valve must operate, something in the system is wrong and should be addressed by a mechanic.
49 . When driving at night, you should do all of the following, except:
To ensure that you can see as well as possible, don't wear sunglasses when driving at night. If you wear eyeglasses, make sure they are clean and unscratched. Make sure you are rested and alert before driving at night.
50 . If you identify a distracted driver on the road, you should:
Flash your lights at them.
If you encounter a distracted driver, make sure to give them plenty of room. Be very careful if you pass their vehicle because the driver may be unaware of your presence and drift into your lane.
2025 Alabama | Frequently Asked Questions
To secure a CDL Bus endorsement in Alabama, you must first have a valid Commercial Driver's License (CDL). Then, you need to pass the Passenger Vehicles endorsement written test. After passing the written test, you will need to complete a skills test in the type of vehicle you plan to drive. The Alabama Law Enforcement Agency (ALEA) administers these tests.
To obtain a CDL Bus license in Alabama, you must have a valid driver's license, pass a medical examination, and complete a CDL application. You need to pass the General Knowledge test, the Passenger Endorsement written test, and the School Bus Endorsement written test if applicable. Finally, you need to successfully complete a skills test in an appropriate vehicle.
While Alabama doesn't mandate specific training for a CDL Bus endorsement, it's beneficial to undergo professional training to learn about bus-specific regulations, safety considerations, and operation. Experience is not required, but you must pass the General Knowledge Test, Passenger Endorsement Test, and a skills test in a vehicle similar to the one you'll be driving.
CDL Bus licenses in Alabama fall into three classifications: Class A, B, and C. Class A is for vehicles with a combined weight over 26,001 lbs., where the vehicle being towed is over 10,000 lbs. Class B is for single vehicles over 26,001 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 in Alabama. The vehicle used for the test must match the type and class of vehicle that matches the CDL license you are seeking. For a bus endorsement, you need to test in a bus of the appropriate size and type.
During the CDL Bus driving test in Alabama, your driving skills will be evaluated. These include pre-trip inspection, basic vehicle control, and on-road driving. You may be asked to perform maneuvers such as parallel parking, backing up, making turns, and navigating intersections. Your ability to handle bus-specific operations like loading/unloading passengers, use of emergency exits, and understanding special traffic rules for buses will also be tested.
Yes, to obtain a CDL Bus endorsement in Alabama, applicants must pass a Department of Transportation (DOT) physical examination. This exam ensures drivers have no medical conditions that could affect their ability to operate a commercial vehicle safely. It includes vision and hearing tests, blood pressure checks, and assessments for conditions like diabetes or heart disease.
No, it's illegal to transport passengers in Alabama without a valid CDL Bus endorsement. This endorsement is required for drivers who operate a vehicle designed to transport 16 or more passengers, including the driver. Failure to have the appropriate endorsement can result in fines, license suspension, or even jail time.
You can add the CDL Bus endorsement to your existing CDL in Alabama. You don't need a new application. However, you must pass the Passenger Transport test and a skills test in a vehicle similar to the one you'll be driving. After passing these tests, the endorsement can be added to your license.
Yes, there are restrictions. Drivers with a CDL Bus endorsement must adhere to federal and state transportation laws, including hours-of-service rules, which limit the number of hours they can drive without rest. They must also pass regular physical examinations to ensure they're fit to drive and maintain a clean driving record. Violations can result in endorsement suspension or revocation.