High Pressure Boilers Ch 6-7 With 18 Questions And Answers

High alkalinity can lead to: {Ans: Caustic Embrittlement (metal cracking along seams and at ends of tubes)}Carbon Dioxide dissolves in condensate and forms: {Ans: Carbonic acid, which can cause corrosion}Soot Blowers: {Ans: mainly found on watertube boilers.}A gas pressure regulator consists of a ____ connected to a globe valve with an opposing adjustable spring. {Ans: Diaphragm}Amines: {Ans: are generally added to boiler water to protect the condensate lines from carbonic acid.}Soot should be: {Ans: removed from the boiler tubes for better heat transfer.}Boiler water with a low PH can cause: {Ans: Acidic Corrosion}Caustic soda and Phosphate are added to boiler water to: {Ans: prevent scale formation by changing calcium carbonate and magnesium carbonate to Non-Adhering Sludge.}Reverse Osmosis: {Ans: a filtration process in which water is pressurized and pressed against the surface of a semipermeable membrane.}With an air atomizing fuel oil burner, the mixture of air and fuel oil passes through a ____ that causes it to spin in the combustion chamber. {Ans: Register}The total dissolved solids (TDS) in water can be measured by: {Ans: A conductivity meter}Cathodic protection of underground storage tanks: {Ans: uses the flow of electrical