AR155-1X Building Utilities Exit Exam [Reviewer] - BU1 Questions And Answers

AR155-1X Building Utilities Exit Exam [Reviewer] - BU1 Questions And Answers Plumbing system - answerThe art and technique of installing pipes, fixtures, and other apparatuses in buildings for bringing in the supply of liquids, substances and ingredients and removing them Coagulation and precipitation - answerAddition of chemicals, such as ferrous sulfate and lime, to the water which cause the larger suspended particles to form a gelatinous mass which precipitates readily. Chlorination - answerWater is injected with hypo-chlorite or chlorine gas to kill harmful bacteria Filtration - answerWater is passed through layers of sand and gravel in concrete basins in order to remove the finer suspended particles Air gap - answerThe unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet supplying water to a tank, plumbing fixture or other device and the flood level rim of the receptacle Water cycle - answerWater falls to the earth in the form of precipitation. It drains into rivers, lakes and streams either naturally or via constructed storm water drainage system Plumbarius - answerRefers to an individual who worked in the sanitation field of ancient rome Water main - answerA main pipe or conduit through which a public or community water system conveys water to all service connections Water distribution pipes - answerA pipe which conveys potable water from the building supply pipe to the plumbing foxtures and other outlets Pump - answerSimple mechanism that produces a vacuum within itself and permits the lifting of water from the source supply by atmospheric pressure Dug well - answerMost common type of well, shaft is excavated and installed with a casing; shallow construction Drilled well - answerA hole is made by rotary drilling machine installing a casing and a screen. Can reach up to 1000 meters Centrifugal pump - answerAssociated with distribution systems of tall buildings; build with an impeller/ water wheel Faucet - answerA device for controlling the flow of a liquid from a pipe by opening or closing an orifice Plumbing fixture - answerReceptacles which are used to provide, recieve and discharge water, liquid and water-carried wastes into a drainage system with which they are connected to Septic tank - answerA covered watertight tank for receiving the discharge from a building sewer separating out the solid organic matter which is decomposed and purified by anaerobic bacteria and allowing the clarified liquid to discharge for final disposal Wash down - answerDischarged waste into a trapway located at the front of the bowl, has a bulge on the front and flushes through a simple wash down action Siphon vortex - answerLess noisy and very efficient, flushing action is started by a whirlpool motion followed by a complete flushdown. Trap - answerA u-shaped or s-shaped section of drain pipe in which liquid remains and forms a seal for preventing the passage of sewer gas without affecting the normal flor of waste water or sewage through it