Under standard atmospheric conditions, 208.7 PSIG converts to approximately what in absolute pressure?

Correct Answer: Option D — 223.4 PSIA.

Absolute pressure (PSIA) is calculated by adding the local atmospheric pressure to the gauge pressure (PSIG). Using the standard atmospheric pressure of 14.7 PSI, the calculation is 208.7 PSIG + 14.7 PSI = 223.4 PSIA. This conversion is essential for accurate thermodynamic calculations in gas turbine performance analysis.