MSF (Motorcycle Safety Foundation) Rider's Course Practice Test

Which of the following is considered one drink?

1. 8oz of wine

2. 12oz of beer

3. 1.5oz of distilled spirits

4. 16oz of malt liquor

The correct answer is: 12oz of beer

The correct choice is based on the standard definitions used for measuring alcoholic beverages. One drink is commonly defined as containing a specific amount of pure alcohol. In the case of beer, a typical serving size is 12 ounces, which generally contains approximately 0.6 ounces of pure alcohol, aligning with this standard. When considering the other options, they contain either more or less than the standard amount of alcohol found in one drink. For instance, an 8-ounce serving of wine typically contains more than the amount of alcohol attributed to one standard drink because wine is generally more concentrated than beer. Likewise, 1.5 ounces of distilled spirits (like whiskey or vodka) also corresponds to one drink, but distilled spirits have a higher alcohol content, making it a different measure from beer. Lastly, 16 ounces of malt liquor exceeds the standard drink measure, as it contains a larger volume and a higher alcohol concentration, making it more than one drink. Thus, while wine, distilled spirits, and malt liquor can define one drink in different contexts, the choice of 12 ounces of beer provides a clear and widely recognized measurement for a single drink.