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Minnesota CDL — General Knowledge Practice Test 1

The Minnesota 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.A restricted seasonal CDL limits commercial driving to a period that may not exceed how many days in a calendar year?
  2. 2.A 12-ounce glass of 5% beer, a 5-ounce glass of 12% wine, and a 1.5-ounce shot of 80-proof liquor share what in common?
  3. 3.On a two-lane road, an 'X' painted on the pavement together with the letters 'RR' warns a driver of what?
  4. 4.How often may an applicant attempt each CDL knowledge test?
  5. 5.Which part of the brain does alcohol affect first as BAC rises?
  6. 6.Which vehicles are usually affected more by strong winds on the highway?
  7. 7.A round sign showing a black symbol on a yellow background posted before a set of train tracks tells a commercial driver to do what?
    Yellow round road sign
  8. 8.How should a driver warn following traffic that a slowdown is coming because of a hazard ahead?
  9. 9.How should you adjust each mirror before a trip to make it most useful?
  10. 10.If you are being tailgated, what is one recommended way to reduce the risk of a crash?

0 of 50 answered