A 300 mm pipeline (f= 0.020) is horizontal and 60 m long and runs between two reservoirs. It leaves the high-level reservoir at a point 36 m below its surface and enters the low-level reservoir 6 m below its surface. (a) Assume standard square-edged entrance and exit and compute the flowrate to be expected. (b) A nozzle of 225 mm tip diameter is now attached to the downstream end of the pipe; neglecting head losses in the nozzle, what reduction of flowrate will be expected? (c) The nozzle is now replaced with a diffuser tube of 375 mm exit diameter. Assuming that the diffuser tube flows full and the losses therein may be neglected, what increase of flowrate is to be expected?