Knowledge Test Class A #1
Class A Driving Test | South Carolina 2024 #1 Page 3 of 7
Train for FREE online with our South Carolina class A 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 SC CDL class A 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 A requirements may vary from state to state.
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15 . Air tank drains should:
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.
16 . Mismatched tire sizes are acceptable on the rear axles.
When inspecting a vehicle's tires, you should verify that there are no tires of mismatched sizes.
17 . A vehicle equipped with an Anti-Lock Braking System (ABS) uses a ____ light to warn that the system is not working properly.
White
Anti-Lock Braking System (ABS) malfunction lamps are usually yellow. Even if the ABS isn't working properly, a driver will still have access to the vehicle's usual braking functions.
18 . What happens if you don’t pass the air brakes endorsement test?
If you do not take or pass the air brakes test, you will be restricted to operating vehicles without air brakes.
19 . What is the average driver’s reaction time?
The average driver has a reaction time between three-quarters of a second and one second. At 55 mph, this corresponds to a distance of 61 feet traveled.
20 . What should happen if the air pressure in the air brake system tanks falls below 60 psi?
The vehicle should stop.
On vehicles with air brakes, a low air pressure warning signal will come on if the pressure in the air tanks falls below 60 psi. On large buses, the signal may activate at 80 to 85 psi.
21 . When approaching a railroad crossing:
You should only worry about the track closest to your vehicle.
You should never rely only on warning signals to alert you to an approaching train. Never try to race a train to a crossing. If there are multiple tracks at a crossing, be sure to check all tracks in both directions before starting to cross.
See the exact questions that will be on the 2024 South Carolina DMV exam.
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2024 South Carolina | Frequently Asked Questions
A CDL Class A license in South Carolina allows drivers to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 lbs or more, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed is over 10,000 lbs. This typically includes tractor-trailers and truck and trailer combinations.
A Class A CDL license in South Carolina allows you to operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds. It includes any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 lbs or more where the towed vehicle(s) exceed 10,000 lbs GVWR.
To obtain a Class A CDL license in South Carolina, you must be at least 18 years old (21 for interstate driving), possess a valid South Carolina driver's license, pass a vision test, and successfully complete knowledge and skills tests. You must also provide proof of identity, Social Security number, South Carolina residency, and clear a medical examination.
In South Carolina, you must be at least 18 years old to qualify for a Class A CDL license for intrastate driving (within South Carolina only). However, if you plan to drive interstate (across state lines or transporting materials from out of state), you must be at least 21 years old.
Specific endorsements aren't required for a Class A CDL license but they can provide additional driving privileges. Endorsements include: H (Hazardous Materials), N (Tank Vehicles), P (Passenger Vehicles), S (School Bus), T (Double/Triple Trailers). To get an endorsement, you must pass additional written and skills tests related to the specific type of vehicle.
The Class A CDL skills test in South Carolina encompasses three main sections: pre-trip inspection, basic controls, and on-road driving. The pre-trip inspection tests your knowledge on vehicle safety. The basic controls test assesses your ability to maneuver and control the vehicle. The on-road driving test evaluates your ability to drive the vehicle in various traffic conditions.
Yes, there are limitations for Class A CDL license holders in South Carolina. These limitations or restrictions relate to the type of vehicle you can drive, safety equipment needed, and in some cases, the time of day you can drive. Restrictions are marked on your CDL and may be removed by passing additional tests.
In South Carolina, the written Class A CDL test is primarily offered in English. However, some locations may offer the test in Spanish. It's recommended to contact your local DMV office to confirm language availability. Please note, all drivers must still have a basic understanding of English to ensure road safety.
Yes, you can request accommodations for the Class A CDL written test in South Carolina if you have a disability. The South Carolina Department of Motor Vehicles (SCDMV) is committed to ensuring that its services are accessible to all individuals. However, specific accommodations depend on the nature of the disability and must comply with federal regulations regarding commercial driving safety.
Yes, if you fail the Class A CDL written test in South Carolina, you can retake it. You must wait at least one day before retaking the test. However, keep in mind there may be additional fees associated with each retest. It's recommended to study thoroughly before reattempting to increase your chances of passing.
