Typically, coke-oven gas is obtained from a battery comprising a number of narrow, vertical chambers, or ovens (0.5m wide, 5m high and 12m long) built of silica brick that are separated by heating ducts, such that heat is transmitted to the coal through both sides of the chamber walls.
ISO keyboard symbol for âControlâ. In computing, a Control key is a modifier key which, when pressed in conjunction with another key, performs a special operation (for example, +); similar to the Shift key, the Control key rarely performs any function when pressed by itself.
Learn about documenting your department's key control activities to mitigate financial errors. As outlined in the required key controls that your department must perform and cerify these controls: A key control is an action your department takes to detect errors or fraud in its financial statements. Your department should already have key financial review and follow-up activities in place. To fulfill documentation requirements, departments should review those activities and identify key controls. The first steps are to determine: 1  Key controls exist.