Two overflow connections between the forward main tank and the supply tanks exist to accomplish what purpose?

• A. Forward Main Tank and Supply Tanks
• B. Main and Aft Tanks
• C. Forward and Rear Tanks
• D. Supply and Aft Tanks

Answer: (A)

These overflow connections are there to keep the fuel levels and pressure in the forward main tank and the supply tanks in balance, ensuring a steady gravity head to feed the engine. By linking the forward main tank to the supply tanks, any rise of fuel in one tank can spill over to the other, so levels remain near the same and the suction to the pumps stays covered even when the ship pitches, rolls, or pumps demand surge. The redundancy of having two paths means fuel can still flow between tanks if one line is blocked or restricted, preserving a continuous supply and preventing air pockets or cavitation in the feed system. In short, the setup maintains reliable, gravity-assisted transfer between the forward main tank and the supply tanks, which is why that pair of tanks is the intended connection.