Oregon applicants take the Class C knowledge test to earn an instruction permit or a driver license, and the minimum age for the permit is 15. This page gives you free OR DMV practice sets by topic, worked explanations of sample questions, a study plan and answers to common questions. The official Oregon DMV manual stays the source for the rules.
Numbers in brackets link to the official sources listed under Sources & last verified. Dates that have passed are removed automatically.
| Item | Detail | Source · Verified |
|---|---|---|
| Number of questions (Class C Knowledge Test) | 35 multiple-choice questions[1] | Oregon Department of Transportation Driver and Motor Vehicle Services · Oct 27, 2026 |
| Exam fee (Class C Knowledge Test) | $7 per attempt[2] | Oregon Department of Transportation Driver and Motor Vehicle Services · Oct 27, 2026 |
| Exam fee (Drive Test) | $45 at DMV[2] | Oregon Department of Transportation Driver and Motor Vehicle Services · Oct 27, 2026 |
| Retake fee (Class C Knowledge Test) | $7 per attempt[2] | Oregon Department of Transportation Driver and Motor Vehicle Services · Oct 27, 2026 |
| Retake policy (Class C Knowledge Test) | Online: 2 attempts per 24 hours, max 4 online; DMV office: same day if resources allow[3] | Oregon Department of Transportation Driver and Motor Vehicle Services · Oct 27, 2026 |
| Validity (Driver License) | 8 years[4] | Oregon Department of Transportation Driver and Motor Vehicle Services · Oct 27, 2026 |
| Validity (Instruction Permit) | 2 years[5] | Oregon Department of Transportation Driver and Motor Vehicle Services · Oct 27, 2026 |
| Delivery (Class C Knowledge Test) | Online (DMV2U) or touch-screen at DMV office[1] | Oregon Department of Transportation Driver and Motor Vehicle Services · Oct 27, 2026 |
| Eligibility (Class C Knowledge Test) | Age 15 or older[4] | Oregon Department of Transportation Driver and Motor Vehicle Services · Oct 27, 2026 |
According to Oregon Department of Transportation Driver and Motor Vehicle Services, “Class C Instruction Permit Must be at least 15 years of age; and Pass the knowledge and vision test.”[4]
The Class C knowledge test is the written part of getting a standard Oregon driver license. Oregon Department of Transportation Driver and Motor Vehicle Services runs it. To apply for an instruction permit you must be at least 15 years of age, and you must pass both the knowledge test and a vision test.
The test has 35 multiple-choice questions. You can take it online through DMV2U at any time, or at a DMV office, either as standby service or with an appointment. The fee is $7 each time you take the test, so a failed attempt costs the same as the first. A passing score is not in the facts we verified, so check the official testing page for it.
Retake rules depend on where you test. Online, you can take the test 2 times in any 24-hour period, and each type of knowledge test is limited to 4 online attempts. After that, further attempts must be made at a DMV office. At an office, a same-day retake is possible if resources allow.
Passing the knowledge test is one step. The Drive Test fee at DMV is $45. A provisional instruction permit is valid for 2 years from the date it is issued, and an original driver license is valid for 8 years. Fees and rules can change, and some details differ by license type, so confirm them on the Oregon DMV website before you book.
Prepare for the OR DMV - Oregon Department of Motor Vehicle exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.
Question: When a school bus is stopped with its red lights flashing and stop arm extended in Oregon, you must stop:
Answer: B. On both sides of the road unless separated by a physical median
Explanation:
The correct answer is that you must stop on both sides of the road unless a physical median separates them. A stopped school bus with red lights flashing and the stop arm extended is protecting children who may cross in front of or behind it, and they can step into traffic from either side.
Stopping only when directly behind the bus is wrong because oncoming drivers face the same risk. Stopping only when children are visible is wrong because children may be hidden by the bus or by parked vehicles. Stopping only on the bus's side of the road is wrong for the same reason as the first option: it ignores opposing traffic.
The rule to remember is that flashing red lights and an extended stop arm mean traffic in both directions stops. A raised physical median is the only exception.
Question: Where can you find study materials for the Oregon DMV permit test?
Answer: D. Online DMV practice tests and Oregon DMV handbook
Explanation:
The correct answer is online DMV practice tests together with the Oregon DMV handbook. The handbook sets out the traffic laws, road signs and safe driving practices the test draws on, and practice tests show you the question format and let you find the topics you still miss.
The DMV office only is wrong because an office is a place to test and get information, not the only place to study. The local library only is wrong because it limits you to whatever copies happen to be there. Driving schools only is wrong because a school is optional and does not replace the official manual.
The rule to remember is to combine sources. Read the official handbook for the rules, then use practice questions to check that you can apply them.
Question: What is hydroplaning and how should you respond if it occurs?
Answer: B. Your tires lose contact with the road surface due to water; ease off the gas and steer straight
Explanation:
The correct answer is that hydroplaning means your tires lose contact with the road because a film of water lifts them, and you should ease off the gas and steer straight. Releasing the accelerator slowly lets the tires slow down and grip the pavement again without upsetting the car.
Engine overheating is wrong because hydroplaning has nothing to do with engine temperature, and switching the engine off would remove power assistance when you need control. Brake failure with rapid pumping is wrong because the brakes have not failed, and hard braking on a water film can cause a skid. Fogged windows are a visibility problem, not hydroplaning.
The rule to remember is to stay calm, avoid sudden braking or sharp steering, and keep the wheel pointed where you want the car to go until traction returns.
Start with the official Oregon DMV driver manual and read it through once, so the rules and sign meanings are familiar before you test yourself. Then take the OR DMV Permit Test set to see where you stand, and write down every question you miss along with the rule behind it.
Next, work through the topic sets that match your weak spots. Use Road Signs and Signals for sign recognition, Traffic Laws and Regulations for right-of-way and speed rules, and Sharing the Road for school buses, cyclists and pedestrians. Add DUI and Alcohol Laws, Parking Rules and Regulations, Special Driving Conditions and Vehicle Safety and Maintenance as needed.
After each set, go back to the manual and reread the passage behind every wrong answer instead of just memorising the answer. Our questions are written by us and are not real exam questions, so treat them as practice for understanding the rules. Finish with the Driver's License and Driving Skills sets, and retake any set where you still miss questions before you book your test.
The Class C knowledge test has 35 multiple-choice questions. Oregon DMV says so on its official testing page. The passing score is not part of the facts we verified, so check the official page before test day rather than relying on a number from a third-party site.
The fee is $7 each time you take the knowledge test, including retakes. The Drive Test is a separate fee of $45 at DMV. Fees can change, so confirm the current amounts on the official Oregon DMV website before you pay or book.
Yes. You can take it online through DMV2U at any time, or at a DMV office as standby service or with an appointment. Online testing has limits on attempts, and further attempts after those limits must be made at a DMV office.
Online, you can take the test 2 times in any 24-hour period, and each type of knowledge test is limited to 4 online attempts. Any later attempts must be made at a DMV office. At an office, a same-day retake is possible if resources allow.
You must be at least 15 years of age and pass both the knowledge test and the vision test. A provisional instruction permit is valid for 2 years from the date it is issued. Check the Oregon DMV teen pages for any extra requirements that apply to you.
No. The practice questions here are written by us with AI tools and are not real exam questions. They help you practise the topics and check your understanding, but the official Oregon DMV driver manual is the authority on the rules you will be tested on.
How we verify: editorial & fact-checking policy. Report an error: contact us.