ISA Certified Control Systems Technician (CCST) Level 1 Practice Test

To convert an oven temperature from Fahrenheit to Celsius, you can use the formula:

\[ C = \frac{(F - 32) \times 5}{9} \]

For a temperature range of 215°F to 220°F, you would first convert both values to Celsius.

Starting with 215°F:

\[ C = \frac{(215 - 32) \times 5}{9} \]

\[ C = \frac{183 \times 5}{9} \]

\[ C \approx \frac{915}{9} \]

\[ C \approx 101.67 \]

Now for 220°F:

\[ C = \frac{(220 - 32) \times 5}{9} \]

\[ C = \frac{188 \times 5}{9} \]

\[ C \approx \frac{940}{9} \]

\[ C \approx 104.44 \]

Thus, the temperature range of 215°F to 220°F converts to approximately 101.67°C to 104.44°C. In this context, the answer chosen, which is 103°C, falls within that converted range. This is why choosing that value makes sense since it