Knowledge Test Class A #2
Class A Driving Test | South Carolina 2024 #2 Page 6 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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36 . 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.
37 . Empty trucks often take longer to stop than fully-loaded trucks.
The brakes, tires, springs, and shock absorbers on heavy-duty vehicles are designed to work best when the vehicle is fully loaded. Empty trucks require longer distances to stop because their lighter weight allows them less traction.
38 . When loading a trailer, the heaviest cargo should be placed:
It is important that vehicles are not top-heavy, if at all possible. A top-heavy vehicle is at an increased risk of rollover. Place the heaviest pieces of cargo underneath lighter pieces of cargo.
39 . A thin layer of ice that forms on road surfaces is called:
Blue ice.
Black ice is a thin layer of ice that is clear enough for the road surface to be seen through it. A road covered in black ice may look like it is merely wet. You should be very careful when temperatures are below freezing and the road looks wet.
40 . If your coolant level is found to be low, you should:
Tighten the belts.
When inspecting the engine compartment, you should check the oil level, coolant level, and windshield washer fluid level, among other things. In both cold and hot weather, it is important that the engine have enough coolant.
41 . How many daily hours of sleep does an adult need to maintain alertness?
Being properly rested is essential to the safe operation of a CMV. To maintain alertness, most people need eight to nine hours of sleep per night.
42 . Air tank drains:
Must remain open while driving.
In an air brake system, the air tanks are equipped with drains that allow water and compressor oil to be removed from the system. If allowed to build up, water and compressor oil can damage an air brake system.
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2024 South Carolina | Frequently Asked Questions
In South Carolina, a Commercial Driver's License (CDL) Class B allows the holder to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, or any such vehicle towing another not in excess of 10,000 pounds. This includes buses, farm labor vehicles, and any vehicle designed to transport 16 or more passengers.
A Class B Commercial Driver's License (CDL) in South Carolina allows the holder to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or any such vehicle towing a vehicle not in excess of 10,000 pounds GVWR. This includes buses, farm tractors, dump trucks, delivery trucks, and utility trucks.
To acquire a Class B CDL 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 complete a Commercial Driver's License (CDL) application. Additionally, you must pass the written knowledge exam and the skills test, which includes a pre-trip vehicle inspection, a basic controls test, and a road test.
In South Carolina, you must be at least 18 years old to qualify for a Class B Commercial Driver's License (CDL) for intrastate driving (within South Carolina only). However, you must be at least 21 years old to drive a commercial vehicle across state lines, carry hazardous materials, or transport passengers.
While not always necessary, specific endorsements can be added to a Class B CDL license in South Carolina to provide additional driving privileges. These include endorsements for passenger vehicles (P), school buses (S), and tank vehicles (N). Each endorsement requires passing a knowledge test, and some also require a skills test.
The Class B CDL skills assessment in South Carolina involves a pre-trip vehicle inspection, a basic controls test, and a road test. The pre-trip inspection tests your ability to evaluate your vehicle's safety. The basic controls test assesses your ability to maneuver and control the vehicle. The road test evaluates your on-road driving skills, including turning, merging, and navigating intersections.
Yes, Class B CDL license holders in South Carolina are limited to driving single vehicles with a gross vehicle weight rating (GVWR) of 26,001 or more pounds, or any such vehicle towing a vehicle not exceeding 10,000 pounds GVWR. They cannot drive a Class A vehicle without the proper endorsement. Also, transporting passengers or hazardous materials may require additional endorsements.
In South Carolina, the written Class B CDL test is primarily administered in English. However, some locations may offer the test in Spanish. It's important to confirm language availability with your local DMV. Remember, even if you take the written test in another language, you must still understand English to pass the road skills test.
Yes, you can request accommodations for the Class B CDL written exam in South Carolina if you have a disability. You will need to provide documentation of your disability and specify the type of accommodation needed. Contact your local DMV office in advance to make these arrangements and to ensure they can provide the necessary accommodations.
Yes, if you don't pass the Class B CDL written test in South Carolina, you can retake it. However, you must wait at least one day before retesting. Keep in mind that each attempt may incur additional testing fees. It's recommended to study thoroughly using the South Carolina Commercial Driver License Manual before reattempting the test.
