Fair Isaac Corp., or FICO, a company that produces one of the leading credit scores lenders use, offers two scenarios on its website that show how credit missteps (including bankruptcy) can affect scores. In these two scenarios, a bankruptcy filing can lower a credit score by as much as 240 points.
An impeller (also written as impellor or impellar) is a rotor used to increase (or decrease in case of turbines) the pressure and flow of a fluid.
Impeller types can be radial, mixed flow, axial and peripheral and are selected on the basis of the pump design and the application. The number of vanes will affect the efficiency, in general more vanes are more efficient. Also the number of vanes affect the steepness of the characteristic curve, see centrifugal pump tips for a graph on this effect.