FREE California CDL Knowledge Class B License Practice Test 2023
Train for FREE online with our California knowldge 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 CA CDL class B permit in 2021, 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.
This licence is necessary for operating a single vehicle with a GVWR of more than 26,000 pounds, a three-axle vehicle weighing more than 6,000 pounds, a bus (excluding a trailer bus), or any farm work vehicle, with endorsement. Applicants must pass a 50-question test to obtain this licence. Each question has three possible answers. To pass, candidates must properly answer 40 questions.
The California Commercial Driver Handbook is used to generate test questions. Questions are drawn from the following chapters: Introduction, Driving Safely, Cargo Transporting Safely, Air Brakes (if applicable), Combination Vehicles, Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test, and On-Road Driving. Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes, and School bus are all endorsements that may be utilised with a Class B CDL.
1 . If required to complete a vehicle inspection report in writing, the report must be signed:
You must sign a written vehicle inspection report only if defects were noted and certified to be repaired, or if repairs are not needed.
2 . Which of the following is not required safety equipment for a commercial motor vehicle?
Emergency equipment that is required for commercial vehicles includes at least one fire extinguisher; spare electrical fuses, unless the vehicle is equipped with circuit breakers; and warning devices for parked vehicles, such as warning triangles, fuses, or liquid burning flares.
3 . Routine vehicle inspections should be done to ensure:
The most important reason to inspect your vehicle is to ensure the safety of yourself and other road users.
4 . If an air compressor is belt-driven, the belt should be routinely checked to ensure that it is:
If your vehicle has air brakes, the air compressor drive belt should be checked before each drive. Check the tightness of the belt and verify that it is in good condition.
5 . To avoid a hazard:
In some emergencies, the best strategy for avoiding a hazard may be to drive onto the shoulder. Most shoulders are strong enough to support the weight of a large vehicle.
6 . What tells you how much pressure is in your vehicle's air tanks?
A vehicle that is equipped with air brakes must also be equipped with a supply pressure gauge. This gauge tells the driver how much air pressure is in each of the vehicle's air tanks.
7 . Using the brakes creates heat. If too much heat is produced:
Brakes are designed to take a lot of heat, but drivers should not rely solely on the brakes to slow their vehicle. Brakes may fade and lose their ability to slow down the vehicle if they become too hot, so drivers should also rely on the engine braking effect.
2023 California | Frequently Asked Questions
The CDL test in California consists of 50 questions. You must correctly answer at least 40 questions to pass (80 percent ).
As you prepare to take the air brakes exam for your CDL license, this test has 25 multiple-choice questions that will help you become a safer driver today.
General knowledge, combination vehicles, and air brakes are the three categories in which you will be evaluated for your CDL.
You must be at least 18 years old and have a normal driver's license to apply for a business learner's permit. Your thumbprint and photo will be taken, and you will be requested to give a Social Security card. You'll need to fill out an application for a commercial driver's license.
You must retake the classroom portion of driver education if you have failed the CDL knowledge test three times. You must retake the behind-the-wheel portion of driver instruction if you have failed the CDL road exam three times.
