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Practice test 6 of 10

Pennsylvania CDL — General Knowledge Practice Test 6

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.The property-carrying rest-break rule lets you drive only if how much time has passed since your last off-duty or sleeper period of at least 30 minutes?
  2. 2.On a newer air-brake vehicle, how do you apply the parking (spring) brakes?
  3. 3.What can happen if a truck with a high center of gravity takes a curve too fast?
  4. 4.Why should you be especially cautious around a stopped bus?
  5. 5.What do the federal rules say about text messaging while driving a commercial motor vehicle?
  6. 6.Why must you always use wheel chocks when parking a trailer that has no spring brakes?
  7. 7.Where is the ABS malfunction lamp located on a trailer equipped with antilock brakes?
  8. 8.If you must stop on the road or shoulder, within how much time must your emergency warning devices be placed out?
  9. 9.When you stop on a two-way, two-lane road, where should the warning devices that mark the ends of your vehicle go?
  10. 10.If there are two left-turn lanes available, which one should a large vehicle use?

0 of 50 answered