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. Lets start our investigation of centrifugal pump efficiency with the impeller.
The only difference between sport coats and blazers is that blazers are always solid-colored, usually blue, black, camel or dark green, while sport coats encompass about everything else. Blazers are considered more basic and more formal than sport coats. Photo Credit Jupiterimages/Brand X Pictures/Getty Images.
Length Differences. One of the easiest ways to distinguish a cape from a cloak is by looking at the lengths. In general, capes are much shorter than cloaks. The length of a cape is usually anywhere from the top of the torso to the hips. Rarely will a cape fall past the thighs. On the other hand, the shortest cloak falls below the knees. Many cloaks are calf-length at minimum, and some are floor-length.