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South Carolina CDL Practice Test: Class B - Test 2019

(From the 2019 South Carolina CDL Handbook)
Number of tests: 1
Number of questions: 30
Passing score: 80

Directions: When applying for this license, applicants must pass a 50-question test. And applicants must score 80% to pass the test. The following questions are based on the details provided in the South Carolina Commercial Driver Handbook. Endorsements that may be used with a Class B CDL include Hazardous Materials, Passenger, Double and Triples, HazMat and Tanker, Air Brakes and School bus. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at South Carolina DMV locations.

You have made 2 errors so far.
1. You will lose your CDL for at least ______ days if you have committed three serious traffic violations within a three-year period involving a CMV.
  • Sound your horn at passing motorists

  • Flash your headlights at oncoming traffic

  • Use your four-way flashers to warn other drivers

  • Sit in your car and wait for help

2. _______ are required of all drivers applying to take the CDL test.
  • Pavement ends ahead.

  • Ahead is a narrow bridge warning.

  • Ahead is a sharp rise in the profile of the road.

  • Ahead is a sharp depression in the profile of the road.

3. What is another name for front-end header board?
  • No right turn.

  • No left turn.

  • No u-turn.

  • No turn on red.

4. Even if you use false bulkheads to keep your livestock cargo bunched together, special care is still necessary especially when you ________.
  • The effect that alcohol has

  • The effect that amphetamines have

  • The effect that anger has

  • The effect that driving with teenagers has

5. If you are driving in freezing temperatures, which of the following is a quick and easy way to see if ice has formed on the road?
  • You cannot see without moving your head

  • You see in your rearview mirror

  • You see in your side mirror

  • Directly behind your vehicle

6. Why should you back and turn toward the driver's side?
  • Enter above the speed of traffic to get ahead

  • Accelerate to the speed of traffic

  • Stop first, then slowly enter traffic

  • Enter slowly to avoid other vehicles