south carolina
CDL Practice Test

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This is a site to help you prepare to take the CDL permit test in South Carolina. You can take these practice test questions as many times as you like, and the site is free to use. The questions on this practice test cover rules from the SC CDL manual. You will be presented with 40 questions and you must answer 34 questions correctly to pass. There is a 50-minute time limit. You may not go back once you answer a question. Click the "Start Test" button below to begin.

1 / 40

A leak rate for a straight truck or bus air brake system should not exceed _____psi per minute when the engine is off and the brakes are released.

2 / 40

While completing the 2nd component of the air brake check you are required to turn the electrical power on, begin fanning off the air pressure by rapidly relasing and apply the foot brake and _____.

3 / 40

Select the true statement about tractor protection valve:

4 / 40

There should be ___space between the upper and lower fifth wheel after coupling.

5 / 40

With the engine cut off and the brakes released the air loss in a straight truck or bus should not be more than:

6 / 40

Select the true statement in regards to handing triples and doubles

7 / 40

What should you check for when inspecting a converter dolly?

8 / 40

Which of the following is NOT a part of the steering system?

9 / 40

To test the tractor-trailer connection for security, you should:

10 / 40

Five hazard classes that require placarding in any amount are ______.

11 / 40

The amount of liquid you can carry depends on:

12 / 40

What is the service air line controlled by?

13 / 40

The front trailer supports should be____before driving away.

14 / 40

What should you do if you start a trailer skid?

15 / 40

When would a drive-wheel skid result in a jackknife when pulling doubles?

16 / 40

A driver that hauls hazardous materials must attend training every:

17 / 40

What is the movement of the liquid called when the tanks are partially filled?

18 / 40

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

19 / 40

What does the drain valve for air tanks remove?

20 / 40

How do you check the air compressor governor "cut in" and "cut out" pressures?

21 / 40

The trailer height is correct for connecting a converter dolly to a second or third trailer when:

22 / 40

When transporting both hazardous and non hazardous materials, your bills must:

23 / 40

An oncoming vehicle keeps its high beams on. You should deal with this hazard by:

24 / 40

Why does it take special skills to haul a tank vehicle?

25 / 40

Which of the following is NOT an important reason to look far ahead when you are driving?

26 / 40

How many different hazard classes are there?

27 / 40

Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

28 / 40

Signs of distracted drivers include:

29 / 40

Before pulling away, make sure the landing gear of the trailer is:

30 / 40

Which of the following is NOT an acceptable type of marking for hazardous materials?

31 / 40

Which of the following is NOT an appropriate reason to flash your braking lights?

32 / 40

When driving on a clear night with the vehicle lights on, your speed should be such that you can stop within _____.

33 / 40

How should you inspect a converter dolly?

34 / 40

How do you check the air flow to the last trailer?

35 / 40

Select the action that is not recommended when driving on slippery roads:

36 / 40

Select the true statement in regards to stopping distance and speed:

37 / 40

You do not have a hazardous materials endorsement on your commercial driver license. When can you legally haul hazardous materials?

38 / 40

When conducting a pre-trip inspection, the most important item to verify is _____.

39 / 40

What is the safest way to stop unruly behavior on the bus?

40 / 40

Select the statement that describes how you could damage the landing gear.

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CDL Category Practice Tests

CDL Practice Test

How To Get A south carolina Commercial Drivers License

To be eligible for a CDL in South Carolina, applicants must meet the following age eligibility requirements.

  • Be at least 18 years old to operate a commercial vehicle intrastate (within South Carolina only).
  • Be at least 21 years old to operate a commercial vehicle interstate (outside of South Carolina).

South Carolina CDL applicants must be certified that they are medically fit enough to operate a commercial vehicle and pass a vision test. Applicants are required to submit the following documents.

  • (Form MCSA-5876) Medical Examiner’s Certificate
  • (Form DL-405A) Medical Certification Requirements

Interstate non-excepted (drivers who do not work for the state or federal governments) must meet federal DOT requirements. Intrastate non-excepted drivers must meet the state requirements. Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in South Carolina. Applicants can be disqualified for having multiple licenses.

South Carolina CDL Endorsements

  • H – Hazmat Vehicles
  • N – Tank Vehicles
  • P – Passenger Vehicles
  • S – School Bus
  • T – Double or Triple Trailer
  • X – Combination Tank Vehicles and Hazmat Vehicles

Hit the Open Road

south carolina CDL License Test Tips

All South Carolina CDL applicants must pass the general knowledge test prior to taking the skills test. To pass the South Carolina test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees. The South Carolina skills test can be taken 14 days after applicants pass the knowledge test. It includes a pre-trip vehicle inspection, basic control skills and on-road driving. Applicants must pass each section.

Military veterans and current military members can apply to have the skills exam waived if they meet the requirements. To qualify for a waiver, applicants must:

  • Be currently enlisted in the military.
  • Possess a valid South Carolina driver’s license.
  • Have operated a commercial vehicle as part of their military duties.
  • Have been discharged from the military within the past 12 months.
  • Submit (Form DL-408A) CDL Skills Test Waiver Application for Military Personnel. The commanding officer must sign this document within 90 days of the CDL application.

Additional Information

Information on the South Carolina Department of Motor Vehicles

The South Carolina Division of Motor Vehicles administers CDL license requirements in South Carolina. To get more information contact them via:

Website: http://www.scdmvonline.com/Driver-Services/Commercial-Licenses

Phone:  803.896.5000

 

Additional South Carolina CDL Helpful Links

Please use the links below to access South Carolina CDL testing resources and to learn more about practice driving tests for the state of South Carolina.