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Practice test 4 of 10

Oregon CDL — General Knowledge Practice Test 4

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.At what blood alcohol concentration is it illegal to operate a commercial motor vehicle?
  2. 2.When making a left turn, how far into the intersection should you be before you begin turning?
  3. 3.Which description fits a Class A combination vehicle?
  4. 4.On a two-lane, two-way road, where do you place the two triangles that are set away from the stopped vehicle?
  5. 5.About how far ahead can you see with low-beam headlights at night?
  6. 6.How many placards must a placarded hazardous materials vehicle display, and where?
  7. 7.When two left-turn lanes are available, which one should a large vehicle use?
  8. 8.When you leave the road onto the shoulder, what helps you keep control?
  9. 9.Why do empty trucks generally require greater stopping distances than loaded ones?
  10. 10.If you commit two serious traffic violations involving a CMV within three years, how long do you lose your CDL?

0 of 50 answered