Final answer:
A centrifugal-type fuel boost pump uses centrifugal force to increase fuel pressure by flinging the fuel to the outer edges using a rotating impeller, ensuring proper pressure delivery in aircraft fuel systems.
Step-by-step explanation:
A characteristic of a centrifugal-type fuel boost pump is that it relies on the principle of centrifugal force to increase the pressure and flow of the fuel. This is accomplished through a rotating impeller within the pump, which flings the fuel outward to the edges of the pump housing, causing an increase in pressure. As the fuel exits through the outlet, it has a higher pressure than when it entered the pump. This type of pump is often used in aircraft fuel systems to ensure that the engine receives fuel at the proper pressure, especially during conditions where the main pump may not be able to provide sufficient pressure alone.