FREE California CDL Knowledge Class B License Practice Test 2024

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.. Read More

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.

50
40
20
To Pass

1 . 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.

2 . When you need to stop in an emergency, you should:

If you need to make an emergency stop, you can use either the controlled braking method or the stab braking method. It's important to brake in a way that keeps your vehicle traveling in a straight line while still allowing you to turn, if necessary.

3 . An application pressure gauge shows:

If a vehicle is equipped, an application pressure gauge shows how much air pressure is being applied to the brakes. This gauge can help a driver identify if their brakes are beginning to fade.

4 . 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.

5 . Texting while driving is especially dangerous because:

Texting while driving is particularly dangerous because it is both a mental and physical distraction to the driver. In addition to diverting a driver's mental attention away from the road, texting requires a person to remove at least one hand from the vehicle's controls.

6 . Which of the following is not a cause of hydraulic brake failure?

Most cases of hydraulic brake failure come from one of two causes. The brakes may fail due to a loss of hydraulic pressure or due to overuse on long hills, causing the brakes to fade.

7 . A danger of swerving to avoid a hazard while driving a large truck is that:

While swerving can sometimes be the safest way to handle a hazard on the roadway, doing so is not without risk. Top-heavy vehicles and tractors with multiple trailers may flip over in a swerve.

See the exact questions that will be on the 2024 California DMV exam.

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2024 California | Frequently Asked Questions

In California, a Commercial Driver's License (CDL) Class A license allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed exceeds 10,000 pounds. This includes tractor-trailers, truck and trailer combinations, and livestock carriers.
A Class A CDL license in California allows the holder to operate vehicles such as tractor-trailers, truck and trailer combinations, tanker vehicles, livestock carriers, and flatbeds. These are typically vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more where the vehicle being towed exceeds 10,000 pounds.
To obtain a Class A CDL license in California, you must be at least 18 years old (21 for interstate driving), have a regular driver's license, pass a vision test, and complete a written knowledge exam. Additionally, you must complete a truck driving training course and pass the CDL skills test, which includes a pre-trip vehicle inspection, a basic control skills test, and an on-road driving examination.
In California, you must be at least 18 years old to apply for a Class A CDL for intrastate transport (within California only). However, to drive across state lines or to carry hazardous materials, you must be at least 21 years old. These age requirements are consistent with federal regulations.
Endorsements for a Class A CDL license are not required but can be beneficial. They allow the license holder to operate special types of vehicles. Common endorsements include H for hazardous materials, T for double/triple trailers, P for passenger vehicles, and N for tank vehicles. Each endorsement requires passing a separate knowledge test.
The Class A CDL skills test in California consists of three parts: a pre-trip vehicle inspection, a basic control skills test, and an on-road driving examination. The pre-trip inspection tests your knowledge about your vehicle and its operation. The basic control skills test assesses your ability to maneuver the vehicle in various situations. The on-road test evaluates your driving skills in traffic.
Class A CDL license holders in California must adhere to various regulations. They're limited to the type of vehicle specified on their license and endorsements. They must follow hours-of-service laws, which regulate driving time to prevent fatigue. Additionally, they're subject to stricter Blood Alcohol Content (BAC) rules, with a limit of 0.04% compared to the standard 0.08%.
Yes, in California, the written Class A CDL test can be taken in languages other than English. The California Department of Motor Vehicles (DMV) offers the test in multiple languages. However, the Federal Motor Carrier Safety Administration requires that all CDL holders understand and read English to ensure road safety.
Yes, you can request accommodations for the Class A CDL written test if you have a disability. The California Department of Motor Vehicles (DMV) provides reasonable testing accommodations under the Americans with Disabilities Act (ADA). You must submit a "Request for Accommodations" form to the DMV detailing your specific needs.
Yes, if you don't pass the Class A CDL written test in California, you can retake it. However, you must wait at least three days before retaking the test. Keep in mind that you'll have to pay a retest fee each time. If you fail three times, you'll need to start the application process over again.

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