The transportation design manual tells you that the allowable spread for a two lane road at 45 miles/hr is 6 feet. The calculated flow rate is 5 cfs, the Slope of the roadway is 0.005 ft/ft, the road roughness is 0.015. Is the spread acceptable or are more drainage inlets necessary

You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?