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Pennsylvania CDL — General Knowledge Practice Test 1

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.On a newer air-brake vehicle, how do you apply the parking (spring) brakes?
  2. 2.What should be your principal method of controlling speed on a long, steep downgrade?
  3. 3.Why should you watch carefully for drivers of vans, loaded station wagons, and rental trucks?
  4. 4.When driving on a commercial learner's permit, who is required to ride with you?
  5. 5.What is the correct practice for a turn signal while you are actually making a turn?
  6. 6.A red triangle with an orange center displayed on the back of a vehicle warns you that the vehicle is what?
  7. 7.How much steering-wheel play indicates that a vehicle may be hard to steer?
  8. 8.If you lose your brakes going downhill and an escape ramp is available, what should you do?
  9. 9.Which of the following is permitted for a driver using a mobile phone while operating a commercial vehicle?
  10. 10.Before you start across an intersection with a large, slow-accelerating vehicle, what must you be sure of?

0 of 50 answered