Idaho CDL Practice Test 2026

Idaho CDL practice test: 416 free practice questions (Based on the official driver handbook). The official format is not yet verified; check the official site before your test. Updated

Official test facts (verified)

FactValueSourceChecked
Practice questions416 questionsitd.idaho.gov

Only facts we confirmed on an official page are listed. Fees, minimum age and waiting periods are added once verified.

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416 practice questions

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Units

  1. 1
    Vehicle Equipment & Safe Operation170 questions
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  2. 2
    General Driving Knowledge158 questions
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  3. 3
    Bad Weather & Night Driving20 questions
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  4. 4
    Impaired Driving & Penalties18 questions
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  5. 5
    Sharing the Road13 questions
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  6. 6
    Speed Limits & Following Distance10 questions
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  7. 7
    Parking & Stopping Rules10 questions
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  8. 8
    Licensing, Demerits & Penalties9 questions
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  9. 9
    Highway & Freeway Driving4 questions
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  10. 10
    Traffic Signs & Signals3 questions
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  11. 11
    Right of Way & Intersections1 questions
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We show test facts only after confirming them on an official page. The format for this test is still being checked; see the agency page below.

416practice questions

CDL knowledge tests & endorsements

Knowledge tests defined by FMCSA (49 CFR Part 383). Which ones you need depends on the vehicle class and endorsements you apply for.

General Knowledge

GK

Air Brakes

AB

Combination Vehicles

CV

Hazardous Materials

H

Tank Vehicles

N

Doubles/Triples

T

Passenger

P

School Bus

S

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Practice question bank

416questions
11topics
3in Traffic Signs & Signals
Vehicle Equipment & Safe Operat…170General Driving Knowledge158Bad Weather & Night Driving20Impaired Driving & Penalties18Sharing the Road13Speed Limits & Following Distan…10Parking & Stopping Rules10Licensing, Demerits & Penalties9Highway & Freeway Driving4Traffic Signs & Signals3Right of Way & Intersections1license-test.com
Vehicle Equipment & Safe Operation is the largest topic (41% of the bank) · Questions per topic · Source: License Test question bank

Sample questions

  1. During the vehicle inspection test, you will be asked to:

    • Change a tire.
    • Explain to the examiner what you are inspecting and why. ✓
    • Estimate the weight of a load on a trailer.

    Vehicle Equipment & Safe Operation · Answer: B · Official handbook: Texas Commercial Driver License Handbook (DL-7C), Section 2 – Driving Safely, p. 30

  2. If driving through flowing water or a large puddle, you should:

    • Increase your speed.
    • Gently apply the brakes. ✓
    • Try to stop in the water.

    General Driving Knowledge · Answer: B · Official handbook: Texas Commercial Driver License Handbook (DL-7C), Section 2 – Driving Safely, p. 56

  3. When driving in fog, you should:

    • Slow down. ✓
    • Speed up.
    • Drive on the shoulder.

    Bad Weather & Night Driving · Answer: A · Official handbook: Texas Commercial Driver License Handbook (DL-7C), Section 2 – Driving Safely, p. 55

  4. Drivers may not operate a CMV with a minimum blood alcohol concentration (BAC) of:

    • 0.1 percent.
    • 0.04 percent. ✓
    • 0.08 percent.

    Impaired Driving & Penalties · Answer: B · Official handbook: Texas Commercial Driver License Handbook (DL-7C), Section 1 – Introduction, p. 22

CDL knowledge tests: compare with nearby states

StateQuestions on testPass markPractice questions
Idahonot verified yetnot verified yet416
Montananot verified yetnot verified yet435
Nevadanot verified yetnot verified yet457
Oregonnot verified yetnot verified yet463
Utahnot verified yetnot verified yet477
Washingtonnot verified yetnot verified yet386
Wyomingnot verified yetnot verified yet459
Utah477Oregon463Wyoming459Nevada457Montana435Idaho416Washington386license-test.com
Idaho ranks 6 of 7 by practice questions · Practice questions per jurisdiction · Source: License Test question bank

FAQ

How many practice questions does this Idaho CDL practice test have?

416 published questions in 11 topics. The largest topics are Vehicle Equipment & Safe Operation (170), General Driving Knowledge (158), Bad Weather & Night Driving (20).

Where do these practice questions come from?

Questions are based on the official Idaho driver handbook (itd.idaho.gov). Every question is aligned with the official handbook rules for Idaho.

Is the Idaho CDL practice test free?

Yes. All 416 questions, topic practice and the wrong-question book are free and need no account.

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Source

Last checked: 2026-10-17 · Verified from official source

Updated: · Based on the official driver handbook