FREE California CDL Knowledge Class B License Practice Test 2024 Page 2 of 7

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.

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40
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To Pass

8 . If a tire fails, you should:

Braking after a tire fails can result in a loss of control. Stay off your brakes, if possible, until your vehicle has slowed considerably.

9 . If there is a fire in your vehicle, you should not:

In the event of a vehicle fire, you should leave the road and stop in an open area. Do not pull into a service station as fuels at the service station could catch fire. Report the fire and your location to emergency services.

10 . If using spring brakes when hauling a heavy load, a complete stop will:

Spring brakes do not work on all axles. If your vehicle's spring brakes activate due to low pressure in an air brake system, your vehicle will need a longer distance to stop than usual, especially if you are carrying a heavy load.

11 . To inspect slack adjusters on S-cam brakes, you need to:

Check each slack adjuster after parking on level ground, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.

12 . When you are about to start down a hill, you should switch into a ____ gear.

Before starting down a hill, be sure to switch into a low gear. Gravity will increase your vehicle's speed as you travel downhill.

13 . A commercial motor vehicle driver:

If you choose to use a mobile phone while operating a CMV, you may only use a hands-free mobile phone that is located close to you. However, even a hands-free mobile phone can be a dangerous distraction while driving. Make sure you are aware of all cell phone laws in the state in which you are driving.

14 . 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.

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

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2024 California | Frequently Asked Questions

To secure a CDL Doubles/Triples endorsement in California, you must first possess a valid CDL. Then, you'll need to pass a written knowledge test about pulling double/triple trailers. This test covers topics such as coupling and uncoupling, inspecting doubles and triples, and handling these vehicles. After passing the test, the endorsement will be added to your CDL.
To obtain a CDL Doubles/Triples license in California, you must have a valid Class A CDL. You'll need to pass a written knowledge test specific to double/triple trailers. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and handling. You don't need a special skills test for this endorsement.
While California doesn't require specific training to get a CDL Doubles/Triples endorsement, it's beneficial. Training can help you understand how to safely operate, couple/uncouple, and inspect these vehicles. You'll need to pass a written knowledge test, so studying is essential. Practical experience driving larger vehicles can also be beneficial for handling doubles/triples.
Yes, in California, to obtain a CDL Doubles/Triples endorsement, you must pass a written knowledge test specifically designed for this endorsement. The test covers topics such as safely pulling double/triple trailers, coupling and uncoupling, and inspecting these types of vehicles. This is in addition to the general CDL tests.
The CDL Doubles/Triples endorsement test in California is a written knowledge test, not a skills test. Therefore, you won't need to demonstrate any specific maneuvers. However, the test does cover topics such as coupling and uncoupling, inspecting doubles and triples, and handling these types of vehicles. Understanding these topics will be crucial to passing the test.
No, it's not permissible to operate double/triple trailers without a valid CDL Doubles/Triples endorsement in California. This endorsement is required by law for drivers who wish to operate a vehicle towing two or three trailers. Driving without the appropriate license or endorsement can result in serious penalties, including fines and suspension of your CDL.
You can add the CDL Doubles/Triples endorsement to your existing commercial driver's license. You don't need to initiate a new application for a license. However, you will need to pass the specific written test for the endorsement and pay any associated fees. Remember, the endorsement is added to your CDL, not your regular driver's license.
Yes, there are limitations for drivers with a CDL Doubles/Triples endorsement. They must only drive vehicles that they are licensed for, and must adhere to the maximum weight and length restrictions outlined by California law. Also, they must follow safety regulations such as conducting pre-trip inspections and adhering to hours-of-service rules. Violation of these rules can result in penalties or loss of the endorsement.
The maximum legal weight for any vehicle in California is 80,000 pounds, including double/triple trailers. The maximum legal length for a two-trailer combination is 75 feet, while a three-trailer combination is 65 feet. However, the length of the cargo in the trailer cannot exceed 53 feet. Exceeding these limits may require a special permit and could result in penalties.
Yes, drivers with a CDL Doubles/Triples endorsement must adhere to specific safety guidelines. These include conducting regular pre-trip inspections, securing cargo properly, maintaining safe following distances, and understanding the high rollover risk. Drivers must also comply with hours-of-service regulations to prevent fatigue-related accidents. Violating these safety rules can result in penalties or loss of endorsement.

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