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Texas 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 Texas.

Mode:

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

What this Texas 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 Texas DPS knowledge test has 30 questions, and you need at least 21 correct (70%) to pass. This practice test is based on the Texas Driver Handbook. The test fee is $16. Tests are administered Computer-based at DPS office or online through approved driver education course. Online testing is available in Texas.

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