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Idaho CDL General Knowledge Practice Test

Practice 25 CDL general knowledge questions — safe driving techniques for commercial vehicles, cargo basics, and hours of service regulations for Idaho.

Mode:

Study mode: See the correct answer, hints, and detailed explanation after each question.

What this Idaho practice test covers

  • Safe driving techniques and space management for large commercial vehicles
  • Vehicle systems and controls — engine, transmission, coupling, and electrical
  • Basic cargo securement principles and weight distribution
  • Hours of service regulations, logbook rules, and driver fitness standards

The actual Idaho ITD knowledge test has 40 questions, and you need at least 34 correct (85%) to pass. This practice test is based on the Idaho Driver's Handbook. The test fee is $25. Tests are administered Computer-based at county driver licensing office.

Free Idaho CDL General Knowledge Test (2026) | DMV IQ