Knowledge Test Class B #1
Class B Driving Test | Oregon 2026 #1 Page 6 of 7
Train for FREE online with our Oregon class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a OR CDL class B permit in 2026, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class B requirements may vary from state to state.
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36 . Before driving a power steering-equipped vehicle, you should make sure that:
When inspecting a vehicle that is equipped with power steering, check the hoses, pumps, and fluid level. In particular, you should look for leaks in the hoses.
37 . The suspension system:
Lightens the load for the tires.
The suspension system holds up a vehicle and its load while keeping the axles in place. Faults in a vehicle's suspension system are extremely dangerous.
38 . During the vehicle inspection test, you must be able to do all of the following, except:
During the pre-trip vehicle inspection test, you will be asked to indicate where the dipstick is located. You will need to show that the oil level is within a safe operating range and above the refill mark.
39 . An applicant will be denied a hazardous materials endorsement if they:
Already have a driver license.
Your application for a hazardous materials endorsement can be denied, or your existing endorsement canceled, if you do not have legal permanent status in the United States; you renounce U.S. citizenship; you are wanted for, under indictment for, or convicted of certain felonies; you are judged mentally incompetent or are involuntarily committed to a mental institution; or you are deemed by the Transportation Security Administration to pose a security threat.
40 . Most heavy vehicles require ____ to change gears.
Triple shifting
Most heavy vehicles with manual transmissions require double clutching to change gears. A driver should release the accelerator, push in the clutch, and shift into neutral at the same time. After releasing the clutch and allowing the vehicle to change to the necessary speed, the driver should push in the clutch, shift gears, then simultaneously release the clutch and accelerate.
41 . When backing with a trailer, you should begin by:
When backing with a trailer, begin by turning the steering wheel in the direction opposite of the turn. Once the trailer starts to turn, reverse the direction of the steering wheel to follow the trailer.
42 . When approaching a curve during the on-road driving test, you must do all of the following, except:
Steadily use the brakes throughout the curve.
When approaching a curve during the on-road driving test, you should thoroughly check traffic in all directions. Before entering the curve, reduce your speed sufficiently so that further braking or shifting is not required. Keep your vehicle in its lane and continue checking traffic in all directions.
2026 Oregon | Frequently Asked Questions
A CDL Class B license in Oregon allows a driver to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 or more pounds, or a vehicle towing another not exceeding 10,000 pounds. This includes buses, farm labor vehicles, and any vehicle designed to transport 16 or more passengers (including the driver).
A Class B CDL license in Oregon allows a driver to operate single vehicles with a GVWR of 26,001 or more pounds, or tow a vehicle not heavy than 10,000 pounds. It covers vehicles like city buses, delivery trucks, dump trucks with small trailers, and large straight trucks.
To acquire a Class B CDL license in Oregon, you must be at least 18 years old (21 for interstate driving), have a valid Oregon driver's license, pass a vision test, and pass the General Knowledge exam. You'll also need to pass a skills test which includes pre-trip inspection, basic controls, and on-road driving. A medical examination is also required.
In Oregon, to qualify for a Class B CDL license, you must be at least 21 years old for interstate driving and at least 18 years old for intrastate driving. You must also pass a knowledge test, a skills test, and a medical examination.
Specific endorsements aren't necessary for a Class B CDL license, but they can expand your driving opportunities. Endorsements are additional qualifications for driving certain types of vehicles or transporting specific cargo, like hazardous materials. To get an endorsement, you must pass a specific knowledge test.
The Class B CDL skills assessment in Oregon includes a pre-trip vehicle inspection to ensure the vehicle is safe to drive, a basic vehicle control test to assess your ability to handle the vehicle, and an on-road driving test to evaluate your ability to drive safely in various traffic situations and road conditions.
Yes, Class B CDL license holders are limited to operating vehicles that are under 26,001 pounds or towing vehicles that weigh less than 10,000 pounds. They cannot operate Class A vehicles without the appropriate license. Additionally, they may need specific endorsements to drive buses, tank trucks, or transport hazardous materials.
Yes, it is possible. The Oregon DMV provides the written Class B CDL test in several languages other than English. However, federal regulations require that all CDL holders understand English well enough to converse with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, you can request accommodations for the Class B CDL written exam in Oregon if you have a documented disability. The Oregon DMV provides various accommodations such as sign language interpreters, extra time, and separate testing rooms. You must make your request in advance and provide appropriate documentation to support your need for accommodation.
Yes, if you do not pass the Class B CDL written test in Oregon, you can retake it. However, there's a waiting period of one day before you can try again. The test can be retaken multiple times, but after three failures, you must wait 28 days before the next attempt. Each test attempt requires a separate fee.