OR · CDL Class B

Oregon Class B CDL Practice Questions

This Oregon Class B CDL practice page is based on the 100-question bank currently saved for this task. The bank focuses on heavy straight-vehicle licensing and general commercial-driving knowledge, plus air brakes, hazardous materials, tank vehicles, passenger operation, and school bus topics. Those specialty modules are conditional study scenarios, not a claim that every Class B applicant needs every endorsement or equipment-specific test. Class A combination-vehicle and doubles/triples operation modules are intentionally excluded from this Class B batch. Use the saved questions to review the concepts actually represented here, then use the current Oregon Commercial Driver Manual and DMV application instructions to confirm the knowledge tests, medical qualification, training, skills testing, restrictions, and endorsements that apply to your own vehicle and operation.

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Every test draws only from the Oregon CDL Class B question bank.

20questionsStart Class B test → 40questionsStart Class B test → 60questionsStart Class B test → 80questionsStart Class B test →

LICENSING GUIDE

What to know before you test

Use this overview together with the latest official guidance linked below.

Confirm the Oregon Class B vehicle group

Start by confirming that the vehicle you plan to operate fits Oregon Class B rather than Class A. The Oregon Commercial Driver Manual describes Class B as a heavy straight vehicle with a GVWR of at least 26,001 pounds, including such a vehicle towing another vehicle not over 10,000 pounds GVWR. Oregon also uses rated or actual gross-weight thresholds when determining whether a CDL is required. Class B includes straight trucks and large buses, and a qualified Class B driver may also operate appropriate Class C commercial vehicles, subject to endorsements and restrictions.

Complete training, CLP, and required knowledge tests

A first-time Oregon Class B applicant who is subject to Entry-Level Driver Training must complete applicable ELDT before the covered CDL skills test. Oregon requires a valid Commercial Learner Permit to be held at least 14 days before skills testing. The general knowledge test applies to all CDL applicants. Additional tests depend on the vehicle and operation: the air-brakes test applies when the vehicle has air brakes, while passenger, school bus, tank, and hazardous-materials testing applies only when those privileges are sought. Combination-vehicle and doubles/triples modules are not normal Class B requirements.

Use the saved Class B practice bank by module

The saved bank contains 100 questions across six modules: 38 general knowledge, 13 air brakes, 13 hazardous materials, 12 tank vehicles, 12 passenger, and 12 school bus. The topic coverage reflects the questions actually stored in the bank, including licensing responsibilities, inspections, cargo management, stopping space, hazardous conditions, emergency procedures, air-brake systems, hazardous materials, tank dynamics, and passenger safety. Treat endorsement-related material as targeted practice for the relevant operation rather than as a universal checklist for every Class B applicant.

Prepare for the Oregon Class B skills test

Before skills testing, make sure the Oregon CLP has been held long enough, required ELDT is complete, and all knowledge tests needed for the intended Class B vehicle have been passed. Oregon’s CDL skills testing covers vehicle inspection, basic control skills, and on-road driving. Use a representative Class B vehicle because the test vehicle and braking system can affect the class and restrictions printed on the CDL. Applicants who test without air brakes or with air-over-hydraulic brakes may receive Oregon L or Z air-brake restrictions, so test equipment should match the privileges needed.

REQUIREMENTS OVERVIEW

Oregon CDL Class B requirements

Requirements depend on the applicant and can change. Verify each item with the cited agency.

age

Oregon CDL applicants and drivers considering interstate operation

Oregon states that a CDL applicant must be at least 18 years old and that a driver must be at least 21 years old to operate commercial vehicles in interstate commerce.

documents

Oregon applicants seeking an original Class B CDL or CLP

Oregon lists proof of full legal name, U.S. citizenship or lawful permanent residence, identity, date of birth, residence address, Social Security number, an Oregon noncommercial Class C license or qualification for one, and valid medical certification information among the CDL or CLP requirements.

tests

Oregon Class B CDL applicants

Oregon requires the CDL general knowledge test for Class B applicants, with air-brake or endorsement knowledge tests when applicable. A valid Oregon CLP must be held at least 14 days before the CDL skills test, and the test vehicle should represent the class and equipment privileges sought.

passing

Oregon CDL knowledge-test and skills-test applicants

Oregon states that commercial knowledge-test results are valid for six months after a passing result. For CDL skills testing, the required vehicle inspection, basic control skills, and on-road components must be successfully completed under Oregon’s current testing process.

applicability

Oregon applicants preparing for Class B commercial driving and related endorsements

Oregon Class B covers heavy straight vehicles and qualifying lighter towed units; passenger, school bus, tank, hazardous-materials, and air-brake requirements depend on the vehicle, cargo, equipment, or operation sought. Class A combination-vehicle and doubles/triples operation are outside this Class B mixed practice scope.

OFFICIAL REFERENCES

Sources for this guide

Open the current source before relying on licensing details.

Oregon Commercial Driver Manual - Oregon InformationOregon CDL eligibility, age, documents, CLP holding period, knowledge testing, ELDT, and skills testingOpen source ↗ Getting a Commercial Driver License or Commercial Learner PermitCDL requirements, weight thresholds, ELDT, medical qualification, and skills testingOpen source ↗ Oregon Commercial Driver Manual - Section 1Class B definition, CDL classes, knowledge tests, endorsements, restrictions, and skills testingOpen source ↗ CDL Endorsements & RestrictionsOregon P, S, N, H, X endorsements and L/Z air-brake restrictionsOpen source ↗ DMV Manuals & Publications - Oregon Commercial Driver ManualCurrent Oregon Commercial Driver Manual access and study materialsOpen source ↗ FMCSA - Entry-Level Driver Training (ELDT)ELDT applicability for first-time Class B applicants and first-time P, S, and H endorsementsOpen source ↗