Which type of tank has a capacity of 600 gallons?

• A. Service fuel tanks
• B. Fuel head tanks
• C. Gravity feed tanks
• D. LO sumo tanks

Answer: (C)

Gravity feed tanks deliver fuel by gravity from an elevated reservoir, so no pump is needed to move fuel to the system. The height difference creates hydrostatic pressure that pushes fuel through the lines, allowing a simple, reliable feed as long as the head is maintained. The 600-gallon capacity is chosen to meet the required supply duration for the system in this configuration, ensuring enough fuel is available without refilling while gravity maintains the flow.

Other tank types exist for different roles: service fuel tanks are used for general storage and servicing, fuel head tanks provide a pressure head to the feed system, and LO sumo tanks refer to a different designation not used for this gravity-fed setup.