Skip to main content
DMV Test Free
ENES

Practice test 9 of 10

South Carolina CDL — General Knowledge Practice Test 9

The South Carolina CDL — General Knowledge knowledge test has ~50 questions; you need ~40 correct (80%) to pass.

This practice test follows that format: 50 questions, pass with 40 correct. Answer every page, then grade it to see the answers and explanations.

Questions 1–10 of 50

  1. 1.The federal rule on hand-held phones defines prohibited use to include dialing in what manner?
  2. 2.At a crossbuck-only railroad crossing, who has the right-of-way?
  3. 3.On a mountain downgrade you pass a sign reading 'Maximum Safe Speed.' How should a commercial driver treat the speed shown?
  4. 4.For a first offense of driving a CMV with a BAC of .04 percent or higher, how long will you lose your CDL?
  5. 5.When may a driver use a prescription drug a doctor has provided while driving a CMV?
  6. 6.Where there is no painted stop line, how far from the nearest rail must a vehicle required to stop at a crossbuck stop?
  7. 7.In highway work zones, what is the leading cause of injuries and fatalities?
  8. 8.How long will you lose your CDL if a first alcohol offense happens while you are driving a vehicle placarded for hazardous materials?
  9. 9.You can see only the front or rear of a nearby vehicle but not its driver. What should you assume?
  10. 10.What should you always do when you leave your vehicle?

0 of 50 answered