21. The rate of flow of fuel entering the engine is very small compared with the rate of flow of air. 22. The Danube has a rate of flow of at its fastest, and at its slowest, in the region of Budapest. 23. The rate of flow of fuel entering the engine is very small compared with the rate of flow of air. 24. "' Power "'in an electric circuit is the rate of flow of energy past a given point of the circuit. 25. Current, or amperage, becomes equivalent to the rate of flow , and voltage to the pressure in the " pipes ." 26. Turbulent flow suggests a faster rate of flow due to velocity increase and / or viscosity decrease relative to laminar flow. 27. As the story is told in Arkansas, the river's lethargic rate of flow past the Whitewater development site had discouraged sales. 28. Slow sand filters slowly lose their performance as the biofilm thickens and thereby reduces the rate of flow through the filter. 29. Archimedes screws are used in sewage treatment plants because they cope well with varying rates of flow and with suspended solids. 30. For example, voltage can simulate water pressure and electric current can simulate rate of flow in terms of cubic metres per second.
