Which of the following is recommended maintenance for an inboard boat?

Maintaining an inboard boat involves ensuring that critical components, such as the engine and hull, remain in good working condition. Replacing deteriorated engine and hull zincs is crucial because zincs act as sacrificial anodes that prevent corrosion on metal parts submerged in water. Over time, these zincs corrode and wear down, losing their effectiveness at protecting the underlying metal from galvanic corrosion. By replacing them when they show signs of deterioration, boat owners can significantly extend the life of their engine and hull, thereby promoting overall safety and performance of the boat.

Other choices do not embody recommended maintenance practices. Storing life jackets in the v-berth may not ensure they are easily accessible in an emergency. Keeping expired flares is irresponsible, as they may not function properly when needed. Finally, locking seacocks in the open position is unsafe; these should be closed when not in use to prevent unwanted flooding.