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.
In the case of the motor it is the rotor and the stator and for the pump it is the impeller and the volute (or diffuser). Of course the friction produced by bearings and other mechanical components (seals, stuffing box, etc) also affect pump efficiency, but the impeller and volute have the greatest influence.