Massachusetts 2nd Class Fireman's Practice Exam

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What does 212 degrees F equal on the Celsius scale?

32
100
180
970.3

The correct answer is: 100

212 degrees Fahrenheit is equivalent to 100 degrees Celsius because this value represents the boiling point of water under standard atmospheric pressure. The conversion from Fahrenheit to Celsius can be calculated using the formula: \[ C = \frac{(F - 32)}{1.8} \] For 212 degrees Fahrenheit, the calculation would be: \[ C = \frac{(212 - 32)}{1.8} \] \[ C = \frac{180}{1.8} \] \[ C = 100 \] This confirms that when water reaches 212 degrees Fahrenheit, it is at the boiling point, which is universally recognized as 100 degrees Celsius. This point is significant in many scientific and practical applications, including cooking, weather measurements, and various industrial processes.