Knowledge Test Class B #1
Class B Driving Test | California 2025 #1 Page 4 of 7
Train for FREE online with our California 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 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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22 . When stopping a manual transmission vehicle, you should:
When stopping, apply gradual pressure to the brake pedal and stop smoothly. If stopping a manual transmission vehicle, push the clutch in when the engine is close to idle.
23 . Which of the following is not a good rule when using turn signals?
When using your turn signals, you should signal well before the turn or lane change, signal continuously throughout the turn or lane change, and cancel the signal after you have completed your move.
24 . During a walk-around inspection, ensure there are no cracks on the brake drums that are more than ____ of the width of the friction area.
Before beginning a trip, it is important to check the brake drums during your walk-around inspection. It is unsafe to drive if any brake drum has a crack more than one half of the width of the friction area.
25 . When the spring brakes are on, you should never:
Never push down the brake pedal while the spring brakes are activated. The combined force of springs and air pressure could damage the brakes.
26 . Which of the following is true?
Missing clamps, spacers, studs, or lugs are dangerous, as are mismatched, bent, or cracked lock rings. Be sure your tires and rims are in good condition before operating your commercial motor vehicle.
27 . An air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately ____ to come to a complete stop.
A vehicle's total stopping distance is made up of perception distance, reaction distance, brake lag distance, and braking distance. With all of these factors included, an air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately 450 feet to come to a complete stop.
28 . The leakage rate for a triple combination vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
When performing a static leakage test on a triple combination vehicle with air brakes, the leakage rate should be no more than 5 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.
2025 California | Frequently Asked Questions
To acquire a CDL Hazmat endorsement in California, you must first have a Commercial Driver's License (CDL). Then, pass the Hazardous Materials (Hazmat) Knowledge Test at a DMV office. After passing, complete a Transportation Security Administration (TSA) background check. Once cleared, take the Hazmat endorsement form to DMV to add the endorsement to your CDL.
To obtain a CDL Hazmat license in California, you need to have a valid Commercial Driver's License (CDL). You must also pass the Hazardous Materials (Hazmat) endorsement knowledge test, provide a valid Transportation Security Administration (TSA) security threat assessment (background check), and complete fingerprinting. Training on handling hazardous materials is also required.
When applying for a CDL Hazmat endorsement in California, you need to provide your current valid Commercial Driver's License (CDL), proof of U.S. citizenship or lawful permanent residency (birth certificate, passport, or green card), and a completed Medical Examination Report Form. You'll also need to pass a TSA background check and provide fingerprints.
Yes, there is a dedicated written test for the CDL Hazmat endorsement in California. This test is designed to evaluate your knowledge about the rules and regulations related to the transportation of hazardous materials. It covers topics such as loading and unloading, bulk packaging, and emergency response procedures. You must pass this test to obtain the endorsement.
The written test for the CDL Hazmat endorsement covers a variety of subjects related to hazardous materials, including: recognition and identification of hazardous materials, compliance with safety regulations, understanding shipping papers, placarding requirements, loading and unloading procedures, handling emergencies and incidents, and the rules for transporting specific types of hazardous materials.
Yes, there are extra charges associated with acquiring a CDL Hazmat endorsement. In California, you must pay a $30 testing fee. Additionally, fingerprinting for the TSA background check costs approximately $86.50. Please note that these fees are subject to change and it's advisable to check the current rates with your local DMV office.
Yes, obtaining a CDL Hazmat endorsement does require a background check and security clearance. This is mandated by the Transportation Security Administration (TSA) and involves fingerprinting and checking for any disqualifying criminal offenses. The goal is to ensure the safety and security of hazardous materials transportation. It's necessary to pass this check to receive the endorsement.
Yes, specialized training and certification are required for the CDL Hazmat endorsement. Applicants must pass a written test regarding the transportation of hazardous materials. Additionally, they must undergo a TSA background check. These requirements ensure that drivers have the necessary knowledge and skills to safely transport hazardous materials.
No, you cannot legally transport hazardous materials without a valid CDL Hazmat endorsement in California. This endorsement is required to ensure the driver's understanding of safety precautions and procedures for transporting hazardous materials. Driving without it can lead to serious legal consequences including fines and suspension of your commercial driver's license.
Yes, you can add the CDL Hazmat endorsement to your current CDL license. You don't need to apply for a new license. However, you must pass a written Hazmat knowledge test and undergo a TSA background check. Once these steps are completed, the Hazmat endorsement can be added to your existing CDL.