A hydroelectric station operates under a mean head of 30 m. The reservoir employed has a catchment area of 4× 108 m2. The rainfall in this area is 125 cm per annum. Determine the capacity of the station for which it should be designed. Assume that 30% of the rainfall is lost due to evaporation etc, 5 per cent of the head is lost in penstock , turbine efficiencies as 85% ,alternator efficiency as 90% and load factor as 50%​

What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information

Steam in a heating system flows through tubes whose outer radius is 2.5 cm and whose walls are maintained at a temperature of 180 °c . circular aluminum alloy 2024-t6 fins ( k= 186 wm. k) of outer radius 3 cm and constant thickness 1 mm are attached to the tube. the space between the fins is 3 mm and thus there are 250 fins per meter of tube length. heat is transferred to the surrounding air at too-25 °c, with a heat transfer coefficient of 40 w/m2. k. manufacturer a claims that this system is rated at 3.5 kw per meter of tube length. if the fins are an integral part of the steam tube, find the heat transfer rate in kw for a 1-m length of tube. is manufacturer a's claim valid? compare the heat transfer rate from 1 meter of tube length if there are no fins.

What is the fuid acceleration in vector form for the following velocity field? note i, j, and k are unit vectors. show all of your work.