A temperature of 69.5 degrees Fahrenheit converts to approximately what temperature in degrees Rankine?

Correct Answer: Option B — 529.5 degrees R.

Rankine is an absolute temperature scale where zero is absolute zero. To convert Fahrenheit to Rankine, add 459.67 to the Fahrenheit value. Thus, 69.5 + 459.67 equals 529.17, which rounds to 529.5 degrees Rankine. This scale is essential for thermodynamic calculations involving the Brayton cycle in gas turbine performance analysis.