Knowledge Test Class B #1
Class B Driving Test | California 2024 #1 Page 5 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 2024, 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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29 . In cool weather, as the temperature begins to rise and ice begins to melt:
As the temperature begins to rise and ice on the road begins to melt, the road surface will often become even more slippery. Water from the slight melting will sit on top of the ice, decreasing the available traction even more. Always decrease your speed and drive with caution when traveling on slippery surfaces.
30 . When backing with a trailer:
When backing, you should pull forward to reposition your vehicle whenever needed. Drift should be corrected immediately by turning the steering wheel in the direction of the drift.
31 . When stopping in an emergency situation, 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 in a straight line but will still allow you to turn if necessary.
32 . The ____ tells a driver how much pressure is in the air tanks.
Drum brake
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.
33 . 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.
34 . On any upgrade, gravity will:
A vehicle will be slowed down by gravity on any uphill grade. You may need to switch to a lower gear to climb a steep grade.
35 . Air tank drains:
Compressed air in an air brake system usually has a certain amount of water and oil in it. This can harm the system if allowed to accumulate. Air tanks have drain valves to aid in removing water and oil from the compressed air.
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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.
