Iowa CDL General Knowledge Test

Master the fundamental CDL knowledge covering safe driving practices, traffic laws, and vehicle operation.

50 Questions
40/50 to Pass
60 Minutes
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About the General Knowledge Test

Master the fundamental CDL knowledge covering safe driving practices, traffic laws, and vehicle operation.

Test Requirements

  • Number of questions: 50
  • Correct answers to pass: 40 out of 50
  • Passing score: 80%
  • Time limit: 60 minutes

Iowa DMV Information

Iowa Department of Transportation – Motor Vehicle Division

Visit IA DMV Website