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.
It is a hybrid of sorts because it is more formal than a sports jacket but unlike the suit jacket, a blazer is not made with a matching pair of trousers. The Fit. Blazers have a looser fit compared to suit jackets. They are also not as structured especially in the shoulder area. sports jackets will usually come with a sport lapel which can be closed completely to protect the chest and neck area. The sports jacket is also the most casual among the three clothing items discussed today.