In order to take suction on the lube oil drain tank cofferdam with the bilge pump shown in the illustration, how many suction side valves must be open? GS-0042

Correct Answer: Option B — Two

To take suction from a specific tank, the system requires the opening of the tank suction valve and the corresponding manifold suction valve. This creates a continuous flow path from the source to the pump suction, ensuring that the pump can effectively draw fluid from the intended location without air binding.