Ahead is to be designed to operate a mean head of 205m and to be supplied by a catchment area of 1000km² with an annual rainfall of 125cm³ of which 80% is available for power generation. the expected load factor is 75% at the plant. allowing a head loss of 5m and assuming the turbine efficiency and generator to be 90% and 95% respectively, calculate the suitability in megawatts rating of the station

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?

Wiy doeres rere okhn a pump whon working betwon the same pressure range?