hazard engineering
81environmental 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 …
82Diesel engine — Diesel engines in a museum Diesel generator on an oil tanker …
83Food — For other uses, see Food (disambiguation). Part of a series on …
84Germanium — (pronEng|dʒɚˈmeɪniəm) is a chemical element with the symbol Ge and atomic number 32. It is a lustrous, hard, silver white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Germanium has five naturally… …
85Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …
86United States Navy — USN redirects here. For other uses, see USN (disambiguation). United States Navy Un …
87Inherent safety — is a concept particularly used in the chemical and process industries. An inherently safe process has a low level of danger even if things go wrong. It is used in contrast to safe systems where a high degree of hazard is controlled by protective… …
88Toy safety — Magnetix, a popular construction toy selling over 3.8 million units, was recalled after injuries and a fatality when magnets came loose. Toy safety is the practice of ensuring that toys, especially those made for children, are safe, usually… …
89Earth potential rise — In electrical engineering, Earth Potential Rise (EPR) also called Ground Potential Rise (GPR) occurs when a large current flows to earth through an earth grid impedance. The potential relative to a distant point on the Earth is highest at the… …
90Flame arrester — A flame arrester being tested …
