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South Carolina CDL Practice Test: Class A - Test 2018

(From the 2018 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 A 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. Which of the following is a reason brakes fade?
  • Slow down and be prepared to stop if necessary.

  • Look both ways as you cross the intersection.

  • Slow down if an emergency vehicle is approaching.

  • Always come to a full stop at the intersection.

2. You will lose your CDL for at least one year if you are caught committing which first offense?
  • Turning left.

  • Already in an intersection.

  • Already in a traffic circle.

  • Going straight ahead.

3. Why should you inspect your vehicle?
  • Turn on the radio

  • Get some coffee

  • Stop driving

  • Open your window

4. Why should you use some caution when honking your horn?
  • Come to a full stop, then go when it is safe to do so.

  • Proceed carefully through the intersection, not always stopping.

  • Slow down and prepare to stop only if cars are approaching you.

  • Stop only for traffic on an intersecting road.

5. You will lose your CDL for at least _____ if you have committed three or more violations of an out-of-service order in a ten-year period.
  • Truss bridges

  • Drawbridges

  • Suspension bridges

  • Rigid bridges

6. What is the purpose of a front-end header board?
  • Require less time to pass on a downgrade than cars

  • Take longer distances than cars to stop

  • Require less turning radius than cars

  • Require less time to pass on an incline than cars