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.
2.Suit jackets have less color choices than sport coats. 3.Suit jackets have a stricter matching to be followed with their corresponding pants as opposed to the more liberal matching of the sport coat to its pants. 4.Suit jackets use a finer cloth material, normally wool, and are softer than other garments.