FREE Air Brakes Endorsement Test Online | South Carolina 2024 Page 4 of 4
Train for FREE online with our South Carolina CDL air brake 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 Class A/Class B driver license 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 the requirements for CDL may vary from state to state.
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19 . Front brake limiting valves were intended to:
Remove uncertainty when applying the brakes.
Some older vehicles with air brakes have front brake limiting valves. These valves were intended to reduce the risk of front wheels skidding. However, research has shown that such devices are unnecessary, so they should be left in the "normal" position.
20 . The most common type of foundation brake used is the:
P-cam disc brake.
The most common type of foundation brake is an s-cam drum brake.
21 . What does ABS do?
Prevent the brakes from being used if downshifting would be more effective
The purpose of an Anti-Lock Braking System (ABS) is to prevent wheels from locking up during hard applications of the brakes, especially on slippery surfaces.
22 . An alcohol evaporator in an air brake system:
Some air brake systems include an evaporator that introduces alcohol into the system. The alcohol can help prevent ice from forming within the system.
23 . What can happen if the air pressure gets too low in an air brake system?
The brakes will be very sensitive.
Pressing and releasing the brake pedal unnecessarily can let air out faster than the compressor can replace it, reducing the available air pressure. If the air pressure in an air brake system gets too low, the brakes will no longer work.
24 . On flat surfaces, wheel chocks:
In situations where a driver cannot use a parking brake, wheel chocks can be used to hold a parked vehicle in place on a level surface.
25 . Dollies equipped with ABS are required to have malfunction lamps located where?
On the top
A dolly equipped with an Anti-Lock Braking System (ABS) is required to have a yellow malfunction lamp located on its left side.
2024 South Carolina | Frequently Asked Questions
To secure a CDL Bus endorsement in South Carolina, you must first have a Commercial Driver's License (CDL). Next, pass the passenger endorsement written test and then complete a skills test in the type of vehicle you'll be driving. You may also need to undergo a background check and meet physical health requirements.
To obtain a CDL Bus license in South Carolina, you need a valid driver's license, be at least 21 years old, and pass a vision exam. You must also pass written knowledge tests for the CDL and passenger endorsement, complete a CDL training course, and pass a skills test in a passenger vehicle. A medical examination is also required.
Yes, specific training is necessary for a CDL Bus endorsement in South Carolina. You must complete a CDL training course that includes both classroom instruction and behind-the-wheel training. Furthermore, you must pass a written knowledge test and a skills test in a passenger vehicle. No specific experience is required, but practice driving is highly recommended.
CDL Bus licenses in South Carolina fall under Class B or Class C. Class B is for vehicles designed to carry 24 passengers or more, including the driver. Class C is for vehicles designed to carry 16 to 23 passengers, including the driver. Both require a passenger (P) endorsement. A school bus (S) endorsement may also be required for certain jobs.
No, you cannot use your personal vehicle for the CDL Bus driving test in South Carolina. The vehicle used for the test must match the class and type of vehicle you plan to drive with your CDL. Therefore, you must use a commercial bus for the test if you're seeking a bus endorsement.
During the CDL Bus driving test in South Carolina, you'll be evaluated on several skills. These include pre-trip vehicle inspection, basic vehicle control (backing, turning, stopping), and on-road driving (lane changes, traffic signals, intersections). You'll also be tested on specific bus maneuvers like loading/unloading passengers, railroad crossing procedures, and emergency exit procedures.
Yes, in South Carolina, a Department of Transportation (DOT) physical examination is required for a CDL Bus endorsement. This ensures that you are physically capable of safely driving a commercial vehicle. The exam assesses vision, hearing, blood pressure, and checks for conditions like diabetes or heart disease that could impact your ability to drive safely.
No, it's not permissible to transport passengers without a valid CDL Bus endorsement in South Carolina. The endorsement is a legal requirement that ensures the driver has the necessary skills and knowledge to safely operate a passenger vehicle. Driving without it can lead to serious penalties, including fines and suspension of your commercial driving privileges.
In South Carolina, you can add a CDL Bus endorsement to your existing commercial driver's license. You'll need to pass the Passenger Transport Test and a skills test in a passenger vehicle. However, you don't need to apply for a new license altogether. Remember, the endorsement is added to your current CDL after you meet all requirements.
Yes, there are restrictions for drivers with a CDL Bus endorsement in South Carolina. Drivers are required to obey all traffic laws, maintain a clean driving record, and pass regular physical exams. Additionally, they cannot drive a bus under the influence of alcohol or drugs. Violations can lead to fines, loss of endorsement, or even loss of the entire CDL.