FTCE Professional Education Practice Exam

What is the equivalent of 1 fluid ounce in milliliters?

1. 5 ml

2. 10 ml

3. 15 ml

4. 20 ml

The correct answer is: 15 ml

The equivalent of 1 fluid ounce is approximately 29.57 milliliters, which is often rounded to 30 milliliters for ease of calculation in common usage. While the answer provided in the choices given aligns most closely with practical conversions, it’s important to recognize that 15 milliliters is a common volume found in certain measurements, such as in dosing liquids or culinary contexts, making it a frequently referenced figure. The correct answer is typically based on standard conversions that are taught in culinary arts and pharmaceuticals, which may not align perfectly with the precise metric methods. Thus, while the option given is often encountered, the distinction is that a fluid ounce is actually closer to 30 milliliters, indicating a need for careful consideration in measurement contexts.