What are the two main parts of the fuel tanks in the PC-12?

The correct identification of the two main parts of the fuel tanks in the PC-12 is centered on the function and design of the fuel system. The PC-12 employs a fuel system that includes both a main tank and a collector tank.

The main tank is responsible for providing the primary volume of fuel necessary for flight operations. It stores the fuel that is drawn into the aircraft’s engines during operation. The collector tank plays a critical role in ensuring that fuel is accessible and available to the engine under various flight conditions and attitudes (such as during climbs, descents, or turns), preventing starvation of the fuel supply.

This design promotes operational efficiency and safety by ensuring that the engines receive a steady supply of fuel, particularly important in an aircraft engine system where gravitational factors and tank configuration can impact fuel flow. Hence, the correct choice highlighting the main and collector tanks encapsulates the fundamental aspects of the PC-12’s fuel tank system arrangement.