overflow tank
21Disasters — ▪ 2009 Introduction Aviation January 23, Poland. A Spanish built CASA transport plane carrying members of the Polish air force home from a conference on flight safety in Warsaw crashes near the town of Miroslawiec; all 20 aboard are killed …
22Mass balance — A mass balance (also called a material balance) is an application of conservation of mass to the analysis of physical systems. By accounting for material entering and leaving a system, mass flows can be identified which might have been unknown,… …
23Safety engineering — is an applied science strongly related to systems engineering and the subset System Safety Engineering. Safety engineering assures that a life critical system behaves as needed even when pieces fail.In the real world the term safety engineering… …
24Ballcock — A ballcock (also balltap or fill valve) is a mechanism for filling water tanks, such as those found in flush toilets, while avoiding overflow. It was invented by Thomas Crapper.It consists of a valve connected to a float by means of a lever,… …
25Coal preparation plant — A coal washer in Eastern Kentucky A coal preparation plant (CPP) is a facility that washes coal of soil and rock, preparing it for transport to market. A CPP may also be called a coal handling and preparation plant (CHPP), prep plant, tipple, or… …
26History of timekeeping devices — For thousands of years, devices have been used to measure and keep track of time. The current sexagesimal system of time measurement dates to approximately 2000 BC, in Sumer. The Ancient Egyptians divided the day into two 12 hour periods, and… …
27Radiator (engine cooling) — For other uses, see Radiator (disambiguation). A typical engine coolant radiator used in an automobile Radiators are used for cooling internal combustion engines, mainly in automobiles but also in piston engined aircraft, railway locomotives,… …
28Space Shuttle — STS redirects here. For other uses, see STS (disambiguation). This article is about the NASA Space Transportation System vehicle. For the associated NASA STS program, see Space Shuttle program. For other shuttles and aerospace vehicles, see… …
29List of Autobots — Autobot Insignia This is a list of known Autobots from the Transformers fictional universe and toy line. The alternate modes of Autobots are usually cars, trucks and various other ground based civilian vehicles. Contents 1 The Transformers… …
30environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
