On a ship with marine gas turbine engines as shown in the illustration, when the engine is operating normally, the enclosure heater will _________. Illustration GT-0022

Correct Answer: Option B — always be de-energized

Enclosure heaters are designed to prevent condensation and maintain ambient temperatures within the module during standby periods. Once the gas turbine is operating, the heat generated by the engine itself is sufficient to maintain the enclosure environment, rendering the auxiliary heaters unnecessary and requiring them to be de-energized.