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.
Men's Suit & Sport Coat Size Conversions. â¢ If your over-arm measurement is more than 7 larger than your chest measurement, choose a suit one size larger than your chest. â¢ Suits have what is called a drop, which is the difference between the size of the jacket and the size of the pants. Classic-fit suits typically have a 6 drop, meaning that a size 38R jacket is paired with size 32 pants. Trim-fit and extra-trim-fit suits typically have a 6 to 7 drop.