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South Carolina CDL Practice Test: Class B - Test 3 2018

(From the 2018 South Carolina CDL Handbook)
Number of tests: 3
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. If you have committed three serious traffic violations within a three-year period involving a CMV, you will likely lose your CDL at least _______ days.
  • The left lane

  • The middle of the intersection

  • Any lane

  • The right lane

2. If you are transporting any amount of hazardous materials, you must _____.
  • When you first see the exit sign

  • Once you have moved into the exit lane

  • On the main road, just before the exit lane

  • Once you see the toll booth

3. Vehicles with air brakes _________.
  • Drive as you would on dry roads

  • Use alternate routes

  • Avoid crossing bridges or intersections

  • Increase your following distance

4. Why can drivers be at a greater risk of an accident when they drive at night?
  • The safe speed to drive depends on many conditions

  • The speed limit is always a safe speed

  • Driving slowly is always safer

  • Accelerating is always dangerous

5. If you have committed two violations of an "out-of-service order" in a ten-year period, you will likely lose your CDL for what amount of time?
  • Flash your headlights

  • Sound your horn

  • Use your emergency lights

  • Wave your arms

6. Tires should be replaced ________.
  • Led by a guide dog, or using a white or metallic cane.

  • Wearing light-colored clothing.

  • Wearing dark-colored glasses.

  • Helped by another person.