The food industry is a complex, global collective of diverse businesses that supply much of the food and food energy consumed by the world population. Only subsistence farmers, those who survive on …

A hydrostatic test is a way in which pressure vessels such as pipelines, plumbing, gas cylinders, boilers and fuel tanks can be tested for strength and leaks.

The petroleum industry includes the global processes of exploration, extraction, refining, transporting (often by oil tankers and pipelines), and marketing petroleum products. The largest volume …