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Texas General Knowledge Test

We cover I-35 construction zones and the 85 mph speed limit on SH 130.

140
Questions
80%
To Pass
60
Minutes

Select Test Mode

DMV Simulator

Timed test with no hints. Simulates the real DMV exam experience.

  • 60 minute time limit
  • No hints or explanations

Learning Mode

Study mode with hints and explanations. Take your time to learn.

  • No time limit
  • Explanations available

About the Texas General Knowledge Test

Texas roads demand more from drivers. You'll haul oil equipment across West Texas or deliver livestock down I-10. Our practice test mirrors the real Texas General Knowledge exam. We focus on what you need to pass.

Summer heat and flash floods create unique hazards. You must know how to handle a blown tire on a 100-degree day. We teach you the rules that keep you safe on Texas highways.

You don't have to guess. Each question comes from the official Texas CDL handbook. We explain why the correct answer matters for your daily driving. Study with us, and you'll build real confidence.

What This Test Covers

  • Air brakes – essential for hauling heavy loads across the Permian Basin.
  • Cargo securement – critical when you haul pipe or lumber on bumpy farm roads.
  • Pre-trip inspection – Texas winters can freeze air lines; you must spot problems early.
  • Hazardous materials – oil and gas shipping means you'll likely carry placarded loads.
  • Speed management – SH 130 lets you drive 85 mph, but you need to know when to slow down.
  • Night driving – long dark stretches between Lubbock and Amarillo require your full attention.

Study Tips

Study the Texas CDL handbook first. Don't skip the sections on Texas-specific laws. We recommend focusing on air brakes and combination vehicles because they appear on most tests.

Use our practice test to find your weak spots. Take it again until you score 90% or higher. The real test gives you 50 questions, and you need 40 correct. Pace yourself, and don't rush.

Texas DMV Information

You take the General Knowledge test at any Texas DPS office. Many offices now require appointments. Book yours online at Texas DPS's website. Walk-ins often face long waits.

The permit fee is $61. You also pay a skills test fee of $93 when you're ready. Bring your Social Security card, proof of Texas residency, and a medical examiner's certificate. Without these, you'll turn around.

Frequently Asked Questions

Your permit lasts 120 days. You can renew it once for another 120 days. That gives you up to 8 months to take the skills test.

Yes. All commercial drivers must carry a valid medical examiner's certificate. You'll hand it over during the application process.

You can. The Texas DPS offers the written test in Spanish. But your skills test requires English enough to understand instructions.

You must be 21 to drive across state lines. For intrastate only, you can get a CDL at 18.

It's 50 multiple-choice questions. You need 40 correct to pass. That's 80%.

Related Resources

Download Texas CDL Handbook Texas DMV Website

Other Texas CDL Practice Tests

Air Brakes
Combination Vehicles
Hazmat
Tanker
Passenger
School Bus
Doubles & Triples
Pre-Trip Inspection

Test Details

  • State: Texas
  • Test: General Knowledge Test
  • Questions: 140
  • Passing Score: 80%
  • Time Limit: 60 minutes
  • Cost: Free

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Quick Topics

  • Air brakes, pre-trip, and cargo securement
  • Texas speed limits and hazard awareness
  • Alcohol and drug rules for commercial drivers