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.
Successful operation of key controls, subjected to auditors' tests of controls or systems walk-through procedures, may reduce control risk to a level that is slightly less than high or even moderate. An assessed lower level of control risk can reduce the need for more expensive tests of balances evidence. Components of key controls at the entity level for both large and small entities are: 1  Management's integrity and ethical values. 2  Management's commitment to doing things right.  Management's ways of doing things.