LNG boil-off is used as fuel in the dual fuel system to produce steam in the boilers to run the turbines. What happens under slow maneuvering speeds, due to excessive steam being generated?

Correct Answer: Option C — the steam produced in the boiler, due to the dual fuel system, is dumped to the main condenser

During slow maneuvering speeds on LNG carriers, excess steam generated by dual-fuel boilers using boil-off gas is safely dumped directly to the main condenser to condense the steam without venting valuable cargo vapors.