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Practice test 2 of 10

Pennsylvania CDL — General Knowledge Practice Test 2

The Pennsylvania 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.While completing a wide right turn, oncoming vehicles are waiting. Why should you not back up to give them room?
  2. 2.How do objects appear when viewed in a convex ('fisheye' or 'spot') mirror?
  3. 3.A Class A commercial driver's license is required to operate what kind of vehicle?
  4. 4.When required to stop at a railroad crossing, where must a bus or placarded vehicle stop relative to the nearest rail?
  5. 5.At what gross weight rating does a single vehicle require a CDL?
  6. 6.How far ahead does the manual say good drivers usually look?
  7. 7.Why does an empty truck often require a greater stopping distance than a loaded one?
  8. 8.If you lose your brakes going downhill and an escape ramp is available, what should you do?
  9. 9.At what blood alcohol concentration is it illegal to operate a commercial motor vehicle?
  10. 10.At what speed can hydroplaning occur when there is a lot of water on the road?

0 of 50 answered