Oklahoma Alcohol & Drugs practice test

Practice blood alcohol limits, DUI rules and medication: 27 questions based on the Oklahoma Driver Manual, 13 of them on Oklahoma's own rules.

Key Oklahoma facts: Alcohol & Drugs

Sample Alcohol & Drugs questions

How long is a first DUI-related license revocation in Oklahoma, at minimum?

  • 30 days
  • 60 days
  • 5 years
  • 180 days
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180 days

It also lasts until the driver completes the Impaired Driver Accountability Program. A prior revocation within 10 years raises the minimum to one year.

Source: Oklahoma Statutes, Title 47, 47 O.S. § 6-205.1(A)

An adult driver tests at 0.06. What does that reading mean under Oklahoma law?

  • It has no legal meaning
  • It is evidence of impairment
  • It proves the driver is sober
  • It is an automatic DUI
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It is evidence of impairment

A level above 0.05 but under 0.08 is relevant evidence of impairment, but other evidence is needed for a conviction.

Source: Oklahoma Statutes, Title 47, 47 O.S. § 756(A)(2)

What amount of alcohol is illegal for an Oklahoma driver under 21?

  • 0.10 percent or more
  • 0.05 percent or more
  • Any measurable amount
  • 0.08 percent or more
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Any measurable amount

Oklahoma has zero tolerance for drivers under 21: any measurable quantity in blood or breath is unlawful.

Source: Oklahoma Statutes, Title 47, 47 O.S. § 11-906.4(A)

Within what time after arrest must a breath or blood test be given to count as evidence in Oklahoma?

  • 2 hours
  • 30 minutes
  • 12 hours
  • 24 hours
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2 hours

Test results are admissible only if the test was given within two hours of the arrest.

Source: Oklahoma Statutes, Title 47, 47 O.S. § 756(C)

When do you start to feel the effects of alcohol, compared with when your driving is affected?

  • At exactly the same moment as impairment
  • Earlier, before any impairment begins
  • Only after several hours of drinking
  • Later, after judgment is already impaired
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Later, after judgment is already impaired

Alcohol puts good judgment on hold, so you may not know you have had too much.

Source: Oklahoma Driver Manual, Chapter 12, Alcohol—Why Drinking and Driving Is So Dangerous, p. 64

An Oklahoma driver arrested for DUI refuses a breath test. What does Service Oklahoma do to the license?

  • Issues a warning letter
  • Adds one point
  • Revokes it
  • Nothing, unless convicted
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Revokes it

Revocation follows the officer's sworn report and takes effect 45 days after written notice.

Source: Oklahoma Statutes, Title 47, 47 O.S. § 753(A)

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About these questions

We wrote these practice questions from the facts in the Oklahoma Driver Manual (Back page 'Updated 11/24/25'; copyright page 2025; PDF modified 2026-07-01, 74 pages, linked from Service Oklahoma's Driver Education page (https://oklahoma.gov/service/all-pages/driver-education.html), read 2026-11-09. Page numbers cited are the printed page numbers, which equal PDF pages. PDF page 26 (traffic signals) has no extractable text and was read from a rendered image. Where the manual is silent or out of date, Oklahoma Statutes Title 47 (complete title from oklegislature.gov, file updated 2025-12-31, including 2025 session laws) and Service Oklahoma's Written Knowledge Test, Learner Permit and Intermediate License pages (read 2026-11-09) are the source. Conflicts found and how they were handled: (1) speed limits table (p. 41) lists 75 mph controlled-access, 80 turnpike, 65 undivided highway; 47 O.S. 11-801 as amended by Laws 2025, c. 197 (eff. Nov. 1, 2025) leaves highway limits to engineering studies, with 75 and 80 only as limits that may be set, so questions use only county roads 55, state parks 35, school zones outside towns 25 and the 75/80 ceilings, cited to the statute; (2) child restraint text (p. 17) is garbled ('at least four 4 years' for the youngest group), so child seat questions follow 47 O.S. 11-1112; (3) funeral processions: the manual (p. 28) says procession vehicles may follow through an intersection regardless of traffic control, while 47 O.S. 11-315 exempts signal- or police-controlled intersections from the no-cutting-in rule, so only the statute rule is tested and common-row-0022 is excluded; (4) penalties for persons under 18 (p. 67: 6 months, 1 year, 2 years or until 21) differ from 47 O.S. 6-107.1 (6 months first, 1 year subsequent), not tested; (5) learner permit age: manual Table 1 (p. 6) and the Learner Permit page say 15 with driver education, while 47 O.S. 6-105(C) (all three 2024 versions read: SB 2038 version) says 15 and a half, not tested; (6) following distance: pp. 34 and 44 give a three-second rule (four in bad weather) but the safety tip on p. 42 says you are too close if you pass the point before four seconds, so following_seconds is left open; (7) speeding penalty 'up to $654 and 30 days' (p. 40) and the impaired-driving suspension list on p. 65 do not match 47 O.S. 11-801(G) and 6-205.1 and are not tested; DUI and refusal revocation questions use 47 O.S. 753 and 6-205.1 (180 days and IDAP); (8) the manual's 15-foot stop from a blind person (p. 28) was not found in Title 47 and is not tested; (9) the $500 crash threshold for suspending an uninsured driver (p. 16) was not found in Title 47 and is not tested; (10) the manual's first insurance bullet on p. 16 repeats 'two or more persons' for $25,000; p. 72 and 47 O.S. 7-324 give $25,000 for one person, which the questions use. edition) and from official sources on road signs. Every answer links to its source, so you can check it and read more.

DMV Decoded is an independent guide, not a government agency. This practice test is not connected to the Service Oklahoma, and your actual test will have different questions. Study the handbook, and check the agency's website for current rules.