The overall efficiency of a centrifugal pump is simply the ratio of the water (output). power to the shaft (input) power and is illustrated by the equation below. Î· = P W / P S where Î· is efficiency, P w is the water power, and P s is the shaft power.
While talking about difference between a ship and a boat, the first thing that comes to oneâs mind is their sizes. Traditionally people consider a ship as a large ocean going vessel, whereas boats are comparatively quite smaller in size.
Best Answer: One definition that is often used is that you can fit a boat inside a ship but you cannot fit a ship inside a boat. A ship is a commercial vessel such as a passenger ship, a freighter or a tanker. A boat is smaller - could be a fishing boat, a dinghy, a sailboat, a row boat, etc., and could actually be fairly large. A yacht is a personally owned pleasure boat, either a sail boat or a power boat, but is not a ship.