Knowledge Test Class A #2
Class A Driving Test | California 2025 #2 Page 7 of 7
Train for FREE online with our California 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 CA 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 . Rough acceleration:
Rough acceleration can cause mechanical damage, so be sure to accelerate smoothly and gradually.
44 . When an S-cam turns inside a brake drum, the S-cam:
When a brake pedal is pressed and the S-cam is turned, the S-cam presses the brake shoes against the inside of the brake drum. This causes friction and will cause the vehicle to slow.
45 . Front wheel braking works:
Front wheel braking is effective under all road conditions. It is unlikely that you will experience a front wheel skid, even on ice.
46 . During a static leakage test, what is the maximum leakage rate that is safe for a double combination vehicle?
When performing a static leakage test on a double combination vehicle with air brakes, the leakage rate should be no more than 3 psi in one minute. If the air leaks from the air brake system at a quicker rate, the vehicle should not be driven because something likely needs to be repaired.
47 . Who may operate a vehicle that is transporting hazardous materials?
Only a driver with a hazardous materials endorsement on their CDL may operate a vehicle carrying hazardous cargo.
48 . If you must drive in reverse, using driver's side backing:
If you must back up, it is safest to back toward the driver's side of the vehicle. This way, as the driver, you will have the best possible view of your path of travel.
49 . What is brake lag?
Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work.
50 . If turning to avoid a hazard:
You should not brake while making a quick turn to avoid a hazard. Doing so could cause your wheels to lock and make your vehicle skid out of control.
2025 California | Frequently Asked Questions
To secure a Commercial Driver’s License (CDL) bus endorsement in California, you must first hold a valid CDL. Then, pass the passenger transport test. You'll also need to pass a Department of Transportation (DOT) physical exam, provide proof of a clean driving record, and successfully complete a bus driver training course. Lastly, pass the skills test in the type of bus you wish to drive.
To obtain a CDL Bus License in California, you need to have a regular driver's license, be at least 18 years old, and have a clean driving record. You must then pass the CDL General Knowledge test, the Passenger Transport test, and the School Bus Endorsement test. Additionally, you need to pass a Department of Transportation (DOT) physical exam and complete a driver training course.
Yes, specific training is necessary for a CDL Bus endorsement in California. You need to complete a professional bus driving course. This course will cover topics like vehicle inspection, on-road driving, and passenger safety. Also, you need to pass the Passenger Transport test and the School Bus Endowment test. On-the-job training may also be required by some employers.
CDL Bus licenses fall under three main classifications in California: Class A, B, and C. Class A is for combination vehicles like tractor-trailers. Class B is for single or combination vehicles like buses, dump trucks, or tow trucks. Class C is for vehicles designed to transport 16 or more passengers including the driver, or hazardous materials. The specific class depends on the vehicle's weight and design.
No, you cannot use your personal vehicle for the CDL Bus driving test. The vehicle you use must match the class of CDL license you are applying for. For example, if you're applying for a bus endorsement, you must test in a bus. The vehicle should be fully operational and meet all California Department of Motor Vehicles requirements.
During the CDL Bus driving test, your ability to safely operate the vehicle and your knowledge about its specific features will be evaluated. Key skills tested include vehicle inspection, backing up, parallel parking, city and highway driving, stopping at railroad crossings, loading and unloading passengers, emergency exit procedures, and responding to brake system failures.
Yes, additional medical prerequisites are essential for a CDL Bus endorsement in California. Applicants must pass a Department of Transportation (DOT) physical examination every two years. This exam evaluates vision, hearing, blood pressure, and checks for conditions like diabetes and epilepsy. It ensures that the applicant is physically capable to safely operate a commercial vehicle.
No, it is not permissible to transport passengers without a valid CDL Bus endorsement. In California, driving a bus or any passenger vehicle without the proper endorsement is illegal and can result in significant fines, suspension of your license, and potentially jail time. It's crucial to obtain the appropriate licensing to ensure safety and compliance with the law.
Yes, a CDL Bus endorsement can be added to your existing CDL license in California. You don't need a new application for the license itself, but you will need to complete the necessary written and skills tests related to passenger transportation, and meet any additional requirements such as a physical exam.
Yes, there are restrictions. Drivers with a CDL Bus endorsement in California must comply with hours-of-service regulations, which limit the number of hours they can drive without rest. They also need to pass regular physical exams and maintain a clean driving record. Additionally, certain medical conditions or medications may disqualify a driver from holding this endorsement.