South Carolina CDL Class A Knowledge Test 1

Question 1

Header boards:

Should never be used. Protect drivers from being hit by cargo. Protect drivers' heads when they are entering the cab of a truck.

Correct Answer:

Protect drivers from being hit by cargo.

Question 2

If an aggressive driver is involved in a crash down the road, you should:

Pull over and yell at them. Stop after the crash scene and report the other driver’s behavior to police. Block the driver in with your vehicle.

Correct Answer:

Stop after the crash scene and report the other driver’s behavior to police.

Question 3

When inspecting underneath your vehicle for leaking fluids, you must look for all the following, except:

Fresh oil. Coolant. Grease. Windshield wiper fluid.

Correct Answer:

Windshield wiper fluid.

Question 4

Headlights:

Are not usually necessary when driving at night. Provide better light than the sun. Should be on the high beam setting whenever possible. Should always be on the high beam setting.

Correct Answer:

Should be on the high beam setting whenever possible.

Question 5

In extremely hot conditions, you may have to:

Increase your speed to cool the engine. Reduce your speed to prevent overheating. Drain the engine coolant. Follow other vehicles more closely than normal.

Correct Answer:

Reduce your speed to prevent overheating.

Question 1 of 50

Exam overview

About this Exam

Prepare with the South Carolina CDL Class A Knowledge Test 1 practice quiz. This question bank includes 50 questions covering vehicle, down, brakes, brake, and load. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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South Carolina CDL Class A Knowledge Test 1

This practice set contains 50 questions from the matching question bank and focuses on vehicle, down, brakes, brake, and load. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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South Carolina CDL Class A Knowledge Test 1

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