Now, most boaters refer to sacrificial anodes as âzincs,â because zinc has been used for a long time. But there are other âzincsâ made of aluminum, magnesium and various alloys with various trade names.n a hypothetical situation where zinc would last 150 days, magnesium would last but 50 days, while an aluminum anode would have corrosion lined up at the chow line for 225 days.
Although water is also incompressible but it is usually considered a contaminant rather than a hydraulic fluid in systems, but recently students of Purdue university claim to have built a small lawn mower which uses only water in all its hydraulic systems.
Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Thus, water is thin, having a lower viscosity, while vegetable oil is thick having a higher viscosity.iscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Thus, water is thin, having a lower viscosity, while vegetable oil is thick having a higher viscosity.