Engine: Expired / General Subjects

1. A one of two motor driven remotely operated pumps to open and close the water tight door
2. B the manually operated pump located in a common passage way to close the water tight door in an emergency
3. C the manually operated pump used to open or close the water tight door from the engine room side
4. D motor driven pump used to close the water tight door from the navigation bridge in an emergency

Tip: press A-D to answer