What type of fuel cells are described as soft and bladder-type, constructed from rubber?

• A. Feed Cells
• B. Integral Cells
• C. Fuselage Cells
• D. Transfer Cells

Answer: (C)

The type of fuel cells that are described as soft and bladder-type, constructed from rubber, are indeed integral cells. These cells are specifically designed to fit within the aircraft's structure, such as the wings, to maximize space and minimize weight. Integral fuel cells utilize flexible materials that can conform to the shape of the aircraft and expand or contract based on fuel volume changes. The use of rubber allows for a lightweight yet durable storage solution while preventing leaks, which enhances the safety and performance of the aircraft.

The other types of fuel cells have different characteristics; feed cells are typically more rigid and designed to supply fuel to the engines. Fuselage cells fit within the aircraft's fuselage but aren't necessarily soft or bladder-like in construction. Transfer cells are designed for moving fuel between different tanks and may not utilize bladder-type construction. Thus, integral cells are particularly distinguished by their construction and functional integration within the aircraft's framework.