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Practice test 9 of 10

Oregon CDL — General Knowledge Practice Test 9

The Oregon 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.Which part of the brain does alcohol affect first?
  2. 2.Why should you never try to race a train to a crossing?
  3. 3.When required to stop at a crossbuck with no painted stop line, how far from the nearest rail must you stop?
  4. 4.How long do you lose your CDL for a second out-of-service order violation within a ten-year period?
  5. 5.What might a driver who is in a hurry do around your commercial vehicle?
  6. 6.How many placards must a placarded hazardous materials vehicle display, and where?
  7. 7.What color is the ABS malfunction lamp on a tractor's instrument panel?
  8. 8.What is a good way to make it safer when another driver is tailgating you?
  9. 9.A vehicle designed to carry how many people, including the driver, requires a CDL?
  10. 10.What should be your main way of controlling speed on a long downgrade?

0 of 50 answered