Oklahoma Road Signs Cheat Sheet.
The night-before summary, built like the exam.

The Numbers to Remember

• 20 questions total on the knowledge test.
• 75% (15 of 20) correct is passing.
• 60 minutes to finish the test.
• Test given online or in person at Service Oklahoma or a licensed operator.
• Two online attempts allowed before an in-person retest is required; $4 fee per failed attempt.
• 15 is the minimum permit age while enrolled in an approved driver education course.
• Supervised driving on a permit: 5:00 a.m. to 10:00 p.m., with a licensed driver at least 21.
• Learner Permit fee: $42.50.

Sign Shapes at a Glance

• Octagon, red — Stop.
• Triangle, red/white, point down — Yield.
• Diamond, yellow — General warning.
• Pentagon — School zone/crossing.
• Round — Railroad crossing.
• Rectangle, white — Regulatory (speed, one-way, parking).
• Rectangle, green — Guide/direction.
• Orange — Construction/work zone.
• Blue — Motorist services.

Right-of-Way in One Breath

• Uncontrolled intersection: first to arrive goes first; simultaneous arrival, left yields to right.
• Four-way stop: same first-come rule, ties go to the right.
• Left turns: yield to oncoming traffic and pedestrians before completing the turn.
• Crosswalks: pedestrians generally have the right-of-way, marked or unmarked.
• Emergency vehicles with lights/sirens: always yield, pull right and stop when safe.
• Roundabouts: vehicles already inside have priority over those entering.

Top Traps

• Confusing yield (triangle) with a full stop — yield only requires stopping if traffic demands it.
• Assuming reduced speed zones (school/construction) only apply when workers or kids are visibly present — they don't.
• Underestimating following distance needed at night or in wet weather; 3-4 seconds is a baseline, not a maximum, and it should grow behind large trucks.
• Forgetting that fatigue impairs driving similarly to alcohol — slower reactions, drifting, poor judgment.
• Treating implied consent as optional — refusing testing when lawfully suspected of impairment carries its own separate penalty from a DUI charge.
• Assuming unlimited retakes — only two online attempts are allowed before you must retest in person, plus a $4 fee per fail.
• Braking hard during hydroplaning instead of easing off the gas, which makes losing control more likely.
• Forgetting that an unsealed alcoholic beverage in the passenger area generally violates open-container rules, even if the driver isn't drinking it.