Which of the following are types of bilge pumps?

• A. Manually Operated
• B. Power Operated (Small Capacity)
• C. Power Operated (Large Capacity)
• D. All of the above

Answer: (D)

Bilge pumps come in several forms to handle different situations: manual operation, and power-supported operation with varying capacities. A manually operated bilge pump lets you remove water without needing electrical power, which is invaluable if the ship’s power is out or you need a simple backup. Power-operated pumps are used when you need to move more water more quickly, and they come in small-capacity and large-capacity versions to cover both routine pumping and rapid dewatering during heavier inflow. On most vessels, having both manual and at least one power-operated pump (in multiple capacities) is standard for redundancy and effectiveness. That’s why all of the above types are considered valid bilge pumps.