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In common parlance, the term keg refers to a half-barrel (15.5 U.S. gallon) vessel as this is the most common size used in restaurants, bars and limited home use. A quarter-barrel has a volume of 7.75 U.S. gallons. Generally, a keg is a vessel smaller than a barrel; thus, it is 30 gallons or smaller. [4]
The kilderkin (from the Dutch for "small cask") is equal to half a barrel or two firkins. [citation needed] kilderkin (Ale) The ale kilderkin likewise underwent various redefinitions. Initially 16 ale or beer gallons (73.94 L), it was redefined in 1688 as 17 ale or beer gallons (78.56 L) and again in 1803 as 18 ale or beer gallons (83.18 L).
A waste weir on a navigable canal is a slatted gate on each canal level or pound, to remove excess water and to drain the canal for repairs or for the winter shutdown. [1] This differs for a dam or reservoir, for which a waste weir is another name for a spillway , i.e. not having the boards to adjust the water height nor the paddles to drain ...
A drop structure, also known as a grade control, sill, or weir, is a manmade structure, typically small and built on minor streams, or as part of a dam's spillway, to pass water to a lower elevation while controlling the energy and velocity of the water as it passes over.
The English River Thames is navigable from Cricklade (for very small, shallow boats) or Lechlade (for larger boats) to the sea, and this part of the river falls 71 meters (234 feet). There are 45 locks on the river, each with one or more adjacent weirs .
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Weir on Lake Tecumseh, Virginia. A flow control structure is a device that alters the flow of water in a stream, drainage channel or pipe. As a group these are passive structures since they operate without intervention under different amounts of water flow and their impact changes based on the quantity of water available.
For example, a small tank of 260 U.S. gallons (220 imperial gallons; 980 liters) can be carried by a cross-country vehicle to extinguish smoldering stubs on rough terrain. [6] A water tender with its equipment storage used by the Vigili del Fuoco. A water tender typically carries some fire fighting equipment.