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Idaho CDL Practice Test — General Knowledge, Air Brakes & Endorsements (2026)

Idaho's CDL knowledge test consists of multiple sections: a General Knowledge test (required for all), plus Air Brakes, Combination Vehicles, and endorsement tests as needed. The total cost is $40 for the application, $29 for knowledge tests, and $70 for the skills test. You must pass each test section with an 80% minimum score. Entry-Level Driver Training (ELDT) compliance is required through a federally registered training provider.

Sample Idaho CDL Practice Test Questions & Official Manual Citations (2026)

Below are 4 real sample questions from our Idaho cdl practice test bank. Every question in PassMyDMV cites the exact page and rule in the official Idaho manual so you understand the law behind every answer:

Sample Question 1 · Any Opinions Findings Conclusions Or Official Idaho Manual · Page 1

According to the Idaho CDL manual, which statement matches the guidance in Pages 1-6, item 1?

  • A. Any opinions, findings, conclusions or recommendations expressed in this publication are those of the Author(s) and do not necessarily reflect the view of the Federal Motor Carrier Safety Administration. Correct
  • B. This guidance applies only when a law enforcement officer gives a separate instruction.
  • C. The manual recommends doing the opposite whenever another driver is nearby.
  • D. The manual says drivers may ignore this guidance when traffic is light.
Why A. Any opinions, findings, conclusions or recommendations expressed in this publication are those of the Author(s) and do not necessarily reflect the view of the Federal Motor Carrier Safety Administration. is correct: The cited manual sentence gives the correct rule or guidance for this situation. [Manual: Pages 1-6 — Idaho manual guidance, p. 1]
Manual excerpt (Official Idaho Manual · Page 1): “Any opinions, findings, conclusions or recommendations expressed in this publication are those of the Author(s) and do not necessarily reflect the view of the Federal Motor Carrier Safety Administration.”
Sample Question 2 · All Rights Reserved This Material Official Idaho Manual · Page 1

According to the Idaho CDL manual, which statement matches the guidance in Pages 1-6, item 2?

  • A. The manual says drivers may ignore this guidance when traffic is light.
  • B. All rights reserved This material has been created for and provided to State Driver License Agencies (SDLAs) by AAMVA for the purpose of educating Driver License applicants (Commercial or Non-Commercial). Correct
  • C. This guidance applies only when a law enforcement officer gives a separate instruction.
  • D. The manual recommends doing the opposite whenever another driver is nearby.
Why B. All rights reserved This material has been created for and provided to State Driver License Agencies (SDLAs) by AAMVA for the purpose of educating Driver License applicants (Commercial or Non-Commercial). is correct: The cited manual sentence gives the correct rule or guidance for this situation. [Manual: Pages 1-6 — Idaho manual guidance, p. 1]
Manual excerpt (Official Idaho Manual · Page 1): “All rights reserved This material has been created for and provided to State Driver License Agencies (SDLAs) by AAMVA for the purpose of educating Driver License applicants (Commercial or Non-Commercial).”
Sample Question 3 · Permission To Reproduce Use Distribute Official Idaho Manual · Page 1

According to the Idaho CDL manual, which statement matches the guidance in Pages 1-6, item 3?

  • A. This guidance applies only when a law enforcement officer gives a separate instruction.
  • B. Permission to reproduce, use, distribute or sell this material has been granted to SDLAs only. Correct
  • C. The manual recommends doing the opposite whenever another driver is nearby.
  • D. The manual says drivers may ignore this guidance when traffic is light.
Why B. Permission to reproduce, use, distribute or sell this material has been granted to SDLAs only. is correct: The cited manual sentence gives the correct rule or guidance for this situation. [Manual: Pages 1-6 — Idaho manual guidance, p. 1]
Manual excerpt (Official Idaho Manual · Page 1): “Permission to reproduce, use, distribute or sell this material has been granted to SDLAs only.”
Sample Question 4 · Any Unauthorized Reprint Use Distribution Official Idaho Manual · Page 1

According to the Idaho CDL manual, which statement matches the guidance in Pages 1-6, item 4?

  • A. Any unauthorized reprint, use, distribution or sale of this material is prohibited. Correct
  • B. The manual recommends doing the opposite whenever another driver is nearby.
  • C. This guidance applies only when a law enforcement officer gives a separate instruction.
  • D. The manual says drivers may ignore this guidance when traffic is light.
Why A. Any unauthorized reprint, use, distribution or sale of this material is prohibited. is correct: The cited manual sentence gives the correct rule or guidance for this situation. [Manual: Pages 1-6 — Idaho manual guidance, p. 1]
Manual excerpt (Official Idaho Manual · Page 1): “Any unauthorized reprint, use, distribution or sale of this material is prohibited.”

Most-Tested Idaho CDL Practice Test Topics in Our 648-Question Bank

Our Idaho cdl practice test bank contains 648 active multiple-choice questions written directly from the official Idaho handbook. Here is how those questions break down across the core exam topics:

Official Manual Topic Area PassMyDMV Question Coverage
Commercial Driver S License Manual11 manual-cited questions
Trailer Skids6 manual-cited questions
Parking Brakes4 manual-cited questions
Railroad Crossings4 manual-cited questions
Backing Trailer4 manual-cited questions
Air Tank Drains3 manual-cited questions
Slack Adjusters3 manual-cited questions
Offtracking3 manual-cited questions

Frequently Asked Questions: Idaho CDL Practice Test

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