On the marine gas turbine shown in the illustration, the fuel oil inlet temperature is sensed by _________. Illustration GT-0017

Correct Answer: Option A — resistance temperature devices

Resistance Temperature Devices (RTDs) are the industry standard for monitoring fuel oil temperatures in gas turbine systems. They provide highly accurate, stable, and repeatable electrical resistance signals that change linearly with temperature, allowing the fuel control system to adjust viscosity and flow parameters for optimal combustion efficiency.