CertQuestUSA
Transportation70+AK/AL/AR +moreConstruction & Safety39+CAEnvironmental99+AL/AR/AZ +moreHealthcare & Clinical196+AL/AR/AZ +moreProfessional Licensing307+AL/AR/AZ +moreEducation & Teacher Certification24+CAAviation & FAA Certification9Finance & Securities Licensing23IT & Cloud Certification6Project Management1Military Entrance Testing1View all sectors ›

Free Oregon CDL Practice Test Online

Official exam: CDL General Knowledge (Oregon)

Take a free Oregon CDL practice test online: a full 50-question paper with every answer explained, no sign-up, scored by topic. The full 124-question bank and the timed simulator are $14.99 for 30 days.

First published: September 3, 2026Bank updated: September 3, 2026Published by CertQuestUSA · review process
TL;DR

CDL General Knowledge (Oregon): a 124-question practice bank for the real CDL Permit & Endorsement Exams standard, 2 full papers of 50 questions each with no repeats, every question written to the regulation it comes from.

Where these questions come from

Every question in this bank cites a source -- primarily FMCSA CDL Manual (77%) and 49 CFR (23%) of this exam's citations.

Take a full practice test free. 50 real questions built to the exam's domain weights, every answer explained, no sign-up required, with a domain-by-domain score at the end.
Start diagnostic
Want the whole bank for CDL General Knowledge (Oregon)? One payment of $14.99 gives you 30 days of full access to this exam. It does not renew. No account needed to buy, and there is a 7-day money-back guarantee.
Not ready yet? Take the free practice test first.
Ways to pay for the full bank
30-day pass
$14.99
about $15 a month
This exam only. Pays once, does not renew.
Monthly
$19.99
$19.99 a month
Every exam. Cancel any time.
Yearly
$143.93
about $11.99 a month
Every exam. Billed once a year.
Lifetime
$39.99
pay once
This exam only, no time limit.

See all plans and bundles

2
full papers, no repeats
50
questions per paper
124
questions in the bank
What this exam covers
Real Oregon CDL requirements

The knowledge tested here is federal (FMCSA) and identical nationwide -- what varies by state is who administers it and under what terms. Researched directly from Oregon Driver and Motor Vehicle Services (DMV)'s own site, verified 2026-09-03.

Administering agency
Oregon Driver and Motor Vehicle Services (DMV)
Spanish-language knowledge test
English only

Oregon’s own CDL manual states directly: "We offer the tests in English only."

5 real sample questions
On winter roads, which surfaces tend to freeze first and should be treated with extra caution?
A. Wide open highway lanes in direct sun
B. Bridges and overpasses
C. Tunnels
D. Freshly paved asphalt roads
Show answer and reasoning

Correct answer: B. Bridges and overpasses

  • A: Open sunlit pavement is generally less prone to icing first compared to elevated structures.
  • C: Tunnels are typically shielded from the ambient cold that causes early icing on exposed structures.
  • D: Fresh asphalt is not identified as an early-icing surface in the manual's guidance.
Source: FMCSA CDL Manual §2.13
Fire extinguisher classifications correspond to different fuel types. Which class of fire involves ordinary combustibles such as wood or paper?
A. Class A
B. Class B
C. Class C
D. Class D
Show answer and reasoning

Correct answer: A. Class A

  • B: Class B fires involve flammable liquids, not ordinary combustibles like wood or paper.
  • C: Class C fires involve energized electrical equipment.
  • D: Class D fires involve combustible metals.
Source: FMCSA CDL Manual §2.21
If a driver without a hazmat endorsement is asked to haul a shipment that requires placarding, what should the driver do?
A. Haul it anyway since placards are just a formality
B. Decline the load, since operating a placarded vehicle requires the proper hazmat endorsement
C. Remove the placards to avoid the issue
D. Only worry about it if stopped at a weigh station
Show answer and reasoning

Correct answer: B. Decline the load, since operating a placarded vehicle requires the proper hazmat endorsement

  • A: Placards reflect a real regulatory requirement, not a mere formality that can be ignored.
  • C: Removing required placards to avoid the endorsement issue creates a separate regulatory violation and safety hazard.
  • D: Waiting for a weigh station stop ignores the driver's ongoing responsibility to be properly qualified before operating the load at all.
Source: FMCSA CDL Manual §2.24
The general knowledge test's hazmat-awareness questions primarily exist to ensure a non-endorsed driver can do what?
A. Recognize a placarded shipment and decline to haul it without the proper endorsement
B. Fill out a full hazmat shipping paper independently
C. Select proper segregation groups for mixed hazmat loads
D. Calculate reportable quantity thresholds for spills
Show answer and reasoning

Correct answer: A. Recognize a placarded shipment and decline to haul it without the proper endorsement

  • B: Completing a full hazmat shipping paper is beyond general knowledge scope and belongs to the H endorsement.
  • C: Segregation group selection is a hazmat endorsement-level skill, not a general knowledge awareness item.
  • D: Reportable quantity calculations are a hazmat endorsement-level skill, not a general knowledge awareness item.
Source: FMCSA CDL Manual §2.24
What is the most important reason for performing a pre-trip inspection before every trip?
A. To satisfy your dispatcher that the truck left on time
B. To find problems that could cause a crash or breakdown before they happen on the road
C. To reduce the number of miles logged for the day
D. To avoid having to fill out any paperwork later
Show answer and reasoning

Correct answer: B. To find problems that could cause a crash or breakdown before they happen on the road

  • A: A pre-trip inspection has nothing to do with dispatch timing.
  • C: Inspection findings do not change logged mileage.
  • D: A pre-trip inspection actually creates required paperwork (the inspection report), not less of it.
Source: FMCSA CDL Manual §2.1.1
Same exam, other states
AKALARAZCACOCTDCDEFLGAHIIAIDILINKSKYLAMAMDMEMIMNMOMSMTNCNDNENHNJNMNVNYOHOKPARISCSDTNTXUTVAVTWAWIWVWY

Frequently asked questions

Where can I take a free Oregon CDL practice test online?
Right here. CertQuestUSA's free Oregon CDL practice test online is a full 50-question practice paper built to the real exam's domain weights, with every answer explained, with no sign-up and no credit card, and shows your score by topic at the end. The full 124-question bank, with every answer explained and cited to the regulation it comes from, is $14.99 for a 30-day pass that never renews.
How many questions are on the CertQuestUSA CDL General Knowledge (Oregon) practice test?
124 questions total, split into 2 full papers of 50 each with no repeats across papers.
What topics does the CDL General Knowledge (Oregon) test cover?
13 domains, with the heaviest weight on Vehicle Inspection (14%), Basic Control & Shifting (10%), and Emergency Maneuvers & Skid Control (10%).
Where do CertQuestUSA's CDL General Knowledge (Oregon) questions come from?
Primarily FMCSA CDL Manual (77%) and 49 CFR (23%) of this bank's citations -- computed directly from this exam's own question sources, not a generic description.
Is there a free CDL General Knowledge (Oregon) practice test?
Yes -- one full 50-question practice paper built to the exam's domain weights, free with no sign-up, with every answer explained and a domain-by-domain score at the end.
Still need a CDL school, a DOT physical, or tuition help?
CDL Schools USA, our sister site, lists FMCSA-registered schools by state, paid training programs, DOT physical clinics, and WIOA and GI Bill funding.
Match me with a program
Composing your paper...