Steam serves propulsion and power generation, forced draft blowers, and which other plant type?

• A. Distilling plants
• B. Auxiliary cooling units
• C. Boiler feed heaters
• D. Navigation lights

Answer: (A)

Steam on a ship powers more than propulsion and power generation; it also drives distilling plants. These plants use heat from steam to evaporate seawater and then condense the vapor into fresh water for the crew. Distilling systems rely on that heat source to operate, making them another major user of the steam supply. The other options don’t fit as a separate steam-powered plant: auxiliary cooling units are typically cooled by seawater or electric systems, boiler feed heaters are part of the boiler system rather than a distinct plant, and navigation lights run on electrical power, not steam.