OR CDL General Knowledge study plan

OR CDL General Knowledge · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

General CDL Knowledge (Oregon CDL Manual core)

Read the Oregon CDL Manual sections on vehicle inspection and the pre-trip walk-around, then recite the seven-step inspection sequence from memory without notes.
Identify every inspection item the examiner can ask you to name out loud (lights, brakes, coupling, belts, fluids) and write a one-line script for each.
Practice the full pre-trip inspection aloud twice, timing yourself against the 30-minute window used on the skills test.

A handwritten checklist of all pre-trip inspection items with your spoken script for each, verified against the manual.

Week 2

Study basic control tasks: backing straight and offset, turning radius, lane positioning, and shifting patterns for manual and automatic transmissions.
Memorize the rules for stopping distance, following distance, and speed management on downgrades.
Answer 40 practice questions on basic control and shifting, and log every miss with the manual page that corrects it.

A one-page shifting and speed-management cheat sheet plus a scored 40-question practice set with error log.

Week 3

Learn the air brake system end to end: compressor, governor, reservoirs, safety valve, and the low-pressure warning threshold.
Explain the three air brake tests (leakage rate, low-pressure warning, spring brake pop-out) and the pass/fail numbers for each.
Walk through the procedure for checking slack adjusters and diagnosing a brake that will not release.

A written explanation of all three air brake tests with the exact numeric limits, checked against the manual.

Week 4

Study cargo securement: working load limits, tie-down counts, aggregate WLL, and commodity-specific rules for logs, steel, and containers.
Review hazardous materials basics: placarding thresholds, shipping papers, and the nine hazard classes.
Take a 50-question timed practice test covering everything from weeks 1-4 and review every wrong answer.

A scored 50-question timed test with a written correction for each missed item.

Week 5

Master hours of service and the ELD: 11-hour driving, 14-hour window, 30-minute break, 60/70-hour limits, and the short-haul exception.
Drill the logbook and ELD editing rules, including what to do during a malfunction or when paper logs are required.
Work through five sample duty-status scenarios and compute the legal driving time remaining in each.

A completed worksheet of five HOS scenarios with correct remaining-drive calculations and rule citations.

Week 6

Study the Oregon-specific rules the manual covers: weight limits, bridge law, chain-up requirements, and mountain-pass winter restrictions.
Review the emergency procedures for brake failure, tire blowout, hydroplaning, and fire, and state the correct response for each.
Practice the railroad crossing and school bus stop procedures until you can recite the required steps in order.

A two-column emergency-procedure reference card (hazard on the left, correct action on the right).

Week 7

Review the full manual index and mark every section you have not yet read, then read those sections.
Take two full-length timed practice exams and record the score and the topic of every missed question.
Reteach your three weakest topics out loud as if explaining them to a new driver.

Two full-length timed practice exam scores plus a ranked list of your three weakest topics with a fix plan.

Week 8

Rerun a full-length practice exam and confirm a score above 90 percent before booking the knowledge test.
Recite the pre-trip inspection and air brake tests once more from memory with no notes.
Simulate test-day logistics: confirm the DMV appointment, required documents, and the CDL disqualification and suspension rules.

A timed practice exam at or above 90 percent and a printed test-day checklist of documents and procedures.

Week 2: Recite the full pre-trip inspection sequence and all seven steps aloud with no notes, in under 15 minutes.

Week 4: Score at least 80 percent on the 50-question timed test covering inspection, control, air brakes, cargo, and hazmat.

Week 6: State the correct action for brake failure, tire blowout, and hydroplaning without hesitation, and cite the Oregon chain-up rules.

Week 8: Score at least 90 percent on two consecutive full-length timed practice exams.