In which tanks is fuel stored on-board ships?

The correct answer regarding where fuel is stored on-board ships is fuel oil tanks. These tanks are specifically designed to hold the fuel necessary for the ship's operations, including engine power and auxiliary machinery.

Fuel oil tanks have characteristics that optimize the storage and transfer of fuel. They are built to accommodate the varying quantities of fuel needed during voyages, ensure proper segregation of different grades of fuel oil, and facilitate safe and efficient fueling operations.

Service tanks, on the other hand, are generally used to hold fuel before it is transferred to the engine room or to the specific equipment requiring the fuel. They act as an intermediate storage point, rather than the primary storage location for fuel on the ship.

Understanding the functions and definitions of different types of tanks is essential for ensuring the efficient and safe operation of shipboard engineering systems.