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

Your engine runs a pump when you are delivering compressed gas. Should you turn off your engine before or after you unhook the hoses after finishing that delivery?

2 / 40

What is the best way to figure out how many seconds of following distance you have?

3 / 40

Students exit the bus and walk:

4 / 40

You should brake on a long steep downgrade hill as a supplement to the braking effects of the engine

5 / 40

How do you test your service brakes?

6 / 40

Select the reason as to why air tanks need to be drained:

7 / 40

Liquid surge affects the handling of a tanker by:

8 / 40

How do you check the coolant level?

9 / 40

Select the true statement about what the Air Compressor Governor controls:

10 / 40

Select the definition of "off-tracking."

11 / 40

Overhead inside mirror is used to:

12 / 40

Tires should should be replaced:

13 / 40

You should check your mirrors while making a lane change:

14 / 40

What is the purpose of the supply pressure gauge?

15 / 40

____is the most common type of foundation brakes used by heavy vehicles.

16 / 40

What action should you take before driving while drowsy?

17 / 40

When driving tank vehicles you should:

18 / 40

To inspect the______you should pump the pedal 3 times and hold it down for 5 seconds while making sure the pedal doesn't move during those 5 seconds.

19 / 40

The brake pushrod should not move more than____for manual slack adjusters.

20 / 40

What is the value of the overhead rear-view mirror inside of the bus?

21 / 40

How do you supply air to the trailer tanks?

22 / 40

Select the load of the trailer that will require the shorter distance to stop.

23 / 40

While completing the 3rd component of the air brake check of a combination vehicle, at what psi should the tracor protection valve and parking brake valve should pop out?

24 / 40

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

25 / 40

This component should be checked that it is solid, securely bolted to the tracture frame, and clear of objects.

26 / 40

The air leakage rate for a combination vehicle should not exceed ____psi a minute.

27 / 40

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

28 / 40

When driving with multiple trailers, which one should be right behind the tractor?

29 / 40

Surge affects the handling of a tanker by:

30 / 40

To test the security of the tractor semi trailer connection you should:

31 / 40

Where are shut off valves located on trailers that are doubles or triples?

32 / 40

What is a passive railway crossing?

33 / 40

The bus driver must accept responsibility for supervising and controlling students while on the bus route. Who is the person in charge?

34 / 40

Remember to_____when steering to avoid a crash while driving doubles.

35 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 Dangerous When Wet material?

36 / 40

You should line up_____when getting ready to back under the trailer.

37 / 40

What can you do at an accident site to help avoid another accident?

38 / 40

Mirrors with a convex surface or "spot" mirrors _____.

39 / 40

Select the true statement about double or triple trailers.

40 / 40

Check to ensure that____when inspecting the coupling.

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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.