Washington MAST Practice Exam 2025 – Comprehensive All-in-One Guide to Mandatory Alcohol Server Training Success!

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Driving under the influence (DUI) refers to operating a motor vehicle under the influence of or affected by?

Intoxicating liquor, marijuana, or any drug or the combined influence

Driving under the influence (DUI) refers to operating a motor vehicle while under the influence of substances that can impair one's ability to safely operate a vehicle. While option A correctly includes all of the mentioned substances (intoxicating liquor, marijuana, and any drug) and acknowledges that they can have a combined influence, the other options are incorrect. Option B is too narrow as it only mentions intoxicating liquor and does not consider other substances that can impair driving ability. Option C is also too narrow as it only mentions marijuana, neglecting other potentially impairing substances. Option D is also incorrect because it only mentions prescription drugs and ignores the fact that intoxicating liquor and marijuana can also impair one's ability to drive safely. Therefore, option A is the most correct and comprehensive answer.

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Only intoxicating liquor

Only marijuana

Only prescription drugs

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