Monitor engine, machinery, or equipment indicators when vessels are underway, and report abnormalities to appropriate shipboard staff.

Monitor the availability, use, or condition of lifesaving equipment or pollution preventatives to ensure that international regulations are followed.

Monitor and test operations of engines or other equipment so that malfunctions and their causes can be identified.

Start engines to propel ships, and regulate engines and power transmissions to control speeds of ships, according to directions from captains or bridge computers.

Perform or participate in emergency drills, as required.

Perform general marine vessel maintenance or repair work, such as repairing leaks, finishing interiors, refueling, or maintaining decks.

Maintain or repair engines, electric motors, pumps, winches, or other mechanical or electrical equipment, or assist other crew members with maintenance or repair duties.

Maintain complete records of engineering department activities, including machine operations.

Operate or maintain off-loading liquid pumps or valves.

Maintain electrical power, heating, ventilation, refrigeration, water, or sewerage systems.