Knowledge Test Class B #1
Class B Driving Test | Oregon 2026 #1 Page 4 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.
50
40
20
22 . The use of a hand-held mobile device while driving is:
Using a hand-held mobile telephone while operating a CMV is both illegal and dangerous.
23 . What is the minimum permitted size of a placard?
32 square inches
Hazardous materials must be diamond-shaped and a size of at least 10 ¾ square inches.
24 . Which of the following is not a problem?
Exhaust system parts that are not leaking
When inspecting an exhaust system, you should verify that parts of the system are not loose, broken, or missing. The system's parts must be properly mounted and should not be rubbing against moving parts of the vehicle.
25 . Which of the following is not a sign of bad brakes?
When inspecting your brakes, you should check for cracked drums; shoes or pads covered in oil, grease, or brake fluid; and shoes that are missing, broken, or worn dangerously thin.
26 . When a vehicle is started, the coolant temperature should:
After an engine is started, the coolant temperature should begin a gradual rise toward the normal operating range.
27 . A truck should be parked:
Because you can't see everything behind you, backing is always dangerous and should be avoided whenever possible. Choose parking spaces from which you can pull forward when you leave.
28 . To inspect slack adjusters on S-cam brakes, you need to:
Chock the wheels and disengage the parking brake.
Check each slack adjuster after parking on level ground, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
See the exact questions that will be on the 2026 Oregon DMV exam.
99.2% of people who use the cheat sheet pass the FIRST TIME
Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
Cameron tells us how he purchased the CDL exam, and found it to be a useful tool which helped him pass the exam and find a job.
2026 Oregon | Frequently Asked Questions
To acquire a CDL Hazmat endorsement in Oregon, you need to pass a written test. First, you must apply at a DMV office, provide proof of U.S. citizenship or lawful permanent residency, and pass the Hazmat knowledge test. After passing the test, you'll need to undergo a federal TSA background check. Once cleared, your new endorsement will be added to your CDL.
To obtain a CDL Hazmat license, you must have a Commercial Driver's License (CDL). You should also be at least 21 years old, a U.S. citizen or have lawful permanent residency. You must pass the Hazmat knowledge test and a Transportation Security Administration (TSA) background check. Lastly, you should have a clean driving record and no disqualifying criminal offenses.
When applying for a CDL Hazmat endorsement, you need to provide proof of U.S. citizenship or lawful permanent residency. This could be a passport, birth certificate, or Permanent Resident Card. You also need your current valid Commercial Driver's License (CDL). Finally, you must complete and pass the TSA background check, and the Hazmat knowledge test results are required.
Yes, there is a dedicated written test for the CDL Hazmat endorsement. The test covers topics like loading and unloading hazardous materials, bulk packaging marking, driving and parking rules, and emergency response procedures. This knowledge test is required in addition to the general CDL written test. You must pass this test to receive your Hazmat endorsement.
The written test for the CDL Hazmat endorsement covers various subjects related to hazardous materials. These include understanding hazard classifications, proper loading and unloading procedures, use of placards and labels, transport rules and regulations, emergency response procedures, and the handling and transport of specific types of hazardous materials.
Yes, there are extra charges associated with acquiring a CDL Hazmat endorsement. These fees cover the written test, fingerprinting, and a background check. The exact cost can vary based on the state you're in, but in Oregon, the total fee is typically around $100. It's advisable to check the exact costs with your local DMV office.
Yes, to obtain a CDL Hazmat endorsement, you must pass a Transportation Security Administration (TSA) background check. This includes a review of your criminal, immigration, and FBI terrorist watch list status. The purpose is to ensure you are not a security risk and can safely transport hazardous materials.
Yes, specialized training or certification is mandatory for the CDL Hazmat endorsement. Applicants must pass a written knowledge test on hazardous materials regulations and safety procedures. Additionally, they must undergo a Transportation Security Administration (TSA) background check. The training ensures drivers can safely handle and transport hazardous materials.
No, you cannot legally transport hazardous materials without a valid CDL Hazmat endorsement in Oregon or any other state. The endorsement ensures that drivers have the necessary training and knowledge to handle and transport hazardous materials safely. Violating this regulation can lead to severe penalties, including fines and suspension of your CDL.
Yes, you can add a CDL Hazmat endorsement to your existing CDL license. You don't need to apply for a new CDL. However, you must pass the Hazmat knowledge test, undergo a TSA background check, and pay the required fees. The endorsement is then added to your existing CDL upon approval.
