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Free Idaho CDL practice tests

Pick a test and start. Every answer is explained, so each question teaches you something. No sign-up needed for the free tests.

Questions built from the federal FMCSA CDL driver manualBuilt from the federal CDL manual
0 of 13 tests finishedUp next: CDL quick practice test
Step 1

Free tests

Open to everyone. Take them as many times as you like.

  1. Test 2Free

    CDL pre-trip inspection test

    What to check on your vehicle before every trip.

    10 questionsStart
  2. Test 3Free

    CDL air brakes basics test

    Compressor, governor, tanks and warnings.

    10 questionsStart
  3. Test 4Free

    CDL combination vehicles basics test

    Trailers, rollovers and coupling.

    10 questionsStart

Finish the trail, win 10% off

Score 80% or higher on all 4 free tests to unlock a discount on Premium.

0 of 4 passed
Step 2

Premium tests

The full exam-style tests. You can read about each one before you upgrade.

  1. Test 5Premium

    CDL vehicle control test

    Steering, speed, space and turns.

    15 questionsUnlock
  2. Test 6Premium

    CDL seeing and communicating test

    Scanning, mirrors, signals and horns.

    12 questionsUnlock
  3. Test 7Premium

    CDL hazards and emergencies test

    Skids, brake failure, fires and escape ramps.

    15 questionsUnlock
  4. Test 8Premium

    CDL night, weather and mountains test

    Fog, ice, hot weather and long downgrades.

    14 questionsUnlock
  5. Test 9Premium

    CDL cargo and weight test

    Securing loads and staying within weight limits.

    12 questionsUnlock
  6. Test 10Premium

    CDL air brakes exam

    The full air brakes knowledge test, all topics.

    25 questionsUnlock
  7. Test 11Premium

    CDL combination vehicles exam

    The full combination vehicles knowledge test.

    20 questionsUnlock
  8. Test 12Premium

    CDL general knowledge exam

    A fixed set drawn from every general knowledge topic.

    50 questionsUnlock
  9. Test 13Most important

    CDL Full Exam Simulator

    150 questions, 50 per exam, different every time.

    50 questionsUnlock
Step 3

Study the CDL manual

Read the source the real test is written from, then print a one-page cheat sheet.

Idaho can add its own rules on top of the federal manual. Check the official site for Idaho licensing agency before your test. DMVZone is not affiliated with any state agency.

Official source: CDL driver information