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Practice test 4 of 10

Ohio CDL — General Knowledge Practice Test 4

The Ohio 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.To measure your following distance in seconds, what should you do?
  2. 2.Under a move-over law, what should you do when approaching a stopped emergency vehicle on the roadside?
  3. 3.On a wet road, about how much should you cut your speed?
  4. 4.What does a red triangle with an orange center on the back of a vehicle mean?
  5. 5.When applying for a commercial driving job, how much of your driving work history must you provide?
  6. 6.When should you move a severely injured person at an accident scene?
  7. 7.As blood alcohol rises, which ability is affected first?
  8. 8.How many kinds of endorsements can be added to a CDL depending on the vehicle or cargo?
  9. 9.Signs at a railroad crossing that display a toll-free telephone number are provided so the public can do what?
    Blue wide rectangular road sign
  10. 10.Before changing lanes, in addition to signaling, what should you check?

0 of 50 answered