Oregon CDL Practice Test Questions and Answers (OR) 7

4.9 out of 5 (56 votes)
80% Passing score
50 Questions
10 Mistakes allowed
As you navigate through the Oregon CDL General Knowledge Practice Test, this seventh installment offers a comprehensive platform to strengthen your understanding of commercial driving. Our CDL practice test is designed to reflect the depth and variety of the DMV test, with a focus on enhancing your readiness for the real deal. Our DMV CDL practice test, featuring 50 Oregon CDL test questions, demands a minimum of 40 correct answers to pass. Notably, these DMV questions are drawn from a large pool, ensuring a broad coverage of essential topics. Each time you attempt this DMV practice test, you'll face the same set of questions, allowing you to track your progress and focus on areas needing improvement. Rooted in the official CDL driver's manual, the source of all our Oregon CDL test questions, you'll find that this practice mirrors the structure and content of the actual CDL permit test in 2026. This alignment ensures that you are studying relevant, up-to-date material, directly applicable to what you'll face at the DMV. Remember, if it's not in the manual, it won't be on the permit test. Visual learners, take note: our Oregon CDL general knowledge practice test is equipped with various learning aids, including images of road signs and traffic scenarios. These visual tools are designed to aid your comprehension and retention of the material, making the learning process more engaging and effective. This Oregon DMV practice test isn't just about answering commercial permit test questions; it's about building a foundation of knowledge and confidence in 2026. By working through these questions, you will develop a deeper understanding of road signs, rules of the road, traffic signals, and pavement markings. And whenever you encounter a tricky question, don't hesitate to use our integrated study aids. They're here to help you through those challenging moments, ensuring you're never alone in your preparation!
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Sample Oregon CDL Test Questions - General Knowledge

Question 1

Which practice is unsafe when backing toward a loading dock?

  1. A. Backing toward the driver’s side when possible
  2. B. Using a helper and agreed hand signals
  3. C. Beginning to back before checking the intended path

Correct answer: C. – Beginning to back before checking the intended path

Before backing, examine the intended path and check side and overhead clearances. Back toward the driver’s side when possible because visibility is better, and use a helper with agreed signals when one is available. Continue backing slowly and stop to inspect again whenever you are uncertain about clearance.

Source: Oregon Commercial Driver Manual — § 2.2.4, “Backing Safely”

Question 2

Which group contains three cargo responsibilities assigned to a commercial driver?

  1. A. Inspecting cargo, setting the vehicle’s GVWR, and issuing shipping papers
  2. B. Inspecting cargo, recognizing poor weight balance, and knowing cargo is secured
  3. C. Opening sealed loads, checking cargo value, and selecting the delivery route
  4. D. Loading every shipment, changing axle ratings, and approving packaging

Correct answer: B. – Inspecting cargo, recognizing poor weight balance, and knowing cargo is secured

Drivers are responsible for inspecting cargo, recognizing overloads or poor weight balance, and knowing that cargo is properly secured. The manual also requires drivers to ensure cargo does not obstruct their view or restrict access to emergency equipment. These responsibilities apply even when another person loaded and secured the shipment, subject to the sealed-load limitation.

Source: Oregon Commercial Driver Manual — § 3, “Transporting Cargo Safely”; § 3.1, “Inspecting Cargo”

Question 3

According to CDL guidance on vehicle weight, which truck can require greater stopping distance because it has less traction?

  1. A. A fully loaded truck
  2. B. An empty truck
  3. C. A truck with an evenly distributed partial load
  4. D. Vehicle weight has no effect on stopping distance

Correct answer: B. – An empty truck

An empty truck can require greater stopping distance because it has less traction. Heavy-vehicle brakes, tires, springs, and shock absorbers are designed to perform best when the vehicle is loaded. With little or no load, the wheels may lock more readily during braking, increasing the risk of a skid and loss of control.

Source: Oregon Commercial Driver Manual — § 2.6.1, “The Effect of Vehicle Weight on Stopping Distance”

Question 4

What does a NARROW BRIDGE warning sign indicate?

This sign warns drivers that _____________.
  1. A. The bridge or culvert roadway is narrower than the approach
  2. B. The bridge is structurally unstable
  3. C. The bridge is restricted to one-way traffic
  4. D. Drivers should accelerate before entering the bridge

Correct answer: A. – The bridge or culvert roadway is narrower than the approach

A NARROW BRIDGE sign warns that the roadway clearance on the bridge or culvert is narrower than the approaching roadway or lanes. In Oregon, a commercial driver should recognize this as a warning of reduced lateral space. The sign alone does not state that the structure is unstable or limited to one-way traffic.

Source: Manual on Uniform Traffic Control Devices, 11th Edition with Revision 1 — § 2C.18, “NARROW BRIDGE and NARROW UNDERPASS Signs (W5-2 and W5-2a)”

Question 5

If the coolant gauge shows a normal temperature, you may immediately remove the radiator cap.

  1. A. True
  2. B. False

Correct answer: B. – False

The Oregon manual directs drivers not to remove the radiator cap or another part of the pressurized cooling system until it has cooled. Steam and boiling coolant can escape under pressure and cause severe burns. A nonpressurized coolant recovery container is different, but that exception does not make a hot radiator cap safe to remove.

Source: Oregon Commercial Driver License Manual — § 2.14.1, “Vehicle Checks”

Question 6

Into how many hazard classes are hazardous materials divided?

  1. A. 3
  2. B. 6
  3. C. 9
  4. D. 12

Correct answer: C. – 9

Hazardous materials are divided into nine classes. They cover explosives, gases, flammable liquids, flammable solids, oxidizers and organic peroxides, poisonous and infectious materials, radioactive materials, corrosives, and miscellaneous hazardous materials. Some classes are further divided into divisions.

Source: Oregon Commercial Driver License Manual — § 9.3.1, “Definitions”, 49 CFR § 173.2 — Hazardous material classes and index to hazard class definitions

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