Which of the listed temperature sensors consists of finely coiled wire, such as platinum, where the resistance varies directly with temperature?

Correct Answer: Option C — Resistance temperature detector

Resistance Temperature Detectors (RTDs) utilize the predictable relationship between the electrical resistance of a metal, such as platinum, and its temperature. As the temperature increases, the resistance of the finely coiled wire increases linearly, allowing for highly accurate and stable temperature measurement in various shipboard monitoring applications.