Caustic soda is - Study guides, Class notes & Summaries

c - correct answer Boiler water is treated in order to prevent a) sludge, mud, pitting, corrosion b) foaming, corrosion, carryover, sludge c) sludge, corrosion, scale, carryover d) scale, sludge, mud, pitting e) foaming, carryover, pitting, corrosion d - correct answer Dissolved solids in raw water a) cause pitting of boiler surfaces b) cause grooving of piping surfaces c) are organic matter d) cannot be removed with filters e) cause corrosion of boiler surfaces a - correct answer Bo...

Class D Water Operator Exam Questions With Verified Answers What are some physical characteristics of water? - answerTemperature, turbidity, color, taste, odor What are some chemical characteristics of water? - answerHardness, pH, solids, and gases What is turbidity? - answerthe amount of suspended matter, such as clay, silt, organic matter, and microorganisms in water T/F Water is never found pure in nature. - answerTrue Is turbidity more of a problem in groundwater or surface water? - ...

What is the most common mosquito borne disease in the USA today? - Encephalitis What is the primary vector and the infectious agent for Eastern Equine Encephalitis? - Culisita species mosquito; Viral What is the primary vector for St. Louis Encephalitis, Western Equine Encephalitis, and West Nile Virus? - Culex species mosquito Name the disease caused by Borrelian burgdorferi, symptoms, the wound type, & incubation period. - Lyme Disease(meningopolyneuritis);Wound: red spot or bump expa...

3rd Class Power Engineering - B1 - Part 2 Why boil out refractory? - ANS To remove any oil, grease, or other contaminating materials from the internal surfaces of the waterside of the boiler. Steps to boil out refractory? - ANS Add the following for each 45000L of boiler water content: - 18kg of trisodium phosphate - 2.25 kg of caustic soda - 2.25 kg of sodium silicate - 22.5 kg of soda ash Pumped as a solution with a chemical feed pump or through a steam drum manhole. Raise pre...

ATI(BURNS) PRACTICE EXAM QUESTIONS CORRECTLY SOLVED AND VERIFIED. Thermal burns - CORRECT ANSWER occur when there is exposure to flames, steam, or hot liquids. This type of burn occurs most frequently, especially in older adults and children. Chemical burns - CORRECT ANSWER s occur when there is exposure to a caustic agent. Cleaning agents used in the home (drain cleaner, bleach) and agents used in the industrial setting (caustic soda, sulfuric acid) cause chemical burns. Electr...

What is the purpose of adding Carbon Dioxide to Softened water? - ANSWER-Restores the Carbonate Balance. How is lime sludge dewatered? - ANSWER-By Solar Lagoons How can Non-Carbonate Hardness be achieved? - ANSWER-By Sodium Carbonate, Ion Exchange, Membrane Separation, Sodium Hydroxide. What is Selective Carbonate Removal? - ANSWER-Removal of Calcium Bicarbonate Hardness at PH of 9.6. Noncarbonate hardness present in water means? - ANSWER-The Total Hardness is greater than the Total ...

1. Materials that emit ionizing radiation are called materials. a. Negative-ion b. Synesgeous c. Radioactive d. Lethal-concentration: c. Radioactive 2. rays are the most dangerous type of radiation a. Alpha b. Beta c. Neutron d. Gamma: d. Gamma 3. Caustic soda and potassium hydroxide are examples of: a. Polymers b. Catalysts c. Acids d. Bases: d. Bases2 / 17 4. Substances that ignite when combined create a reaction. a. Hyperbolic b. Hypergolic c. Congenial d. Cryogenic: b. Hyp...

Water Treatment Operator Certification Study Guide (AWWA) Questions and Answers A continuously flowing watercourse Perennial Stream Algae causes PH to ....... at night Decrease What contributes to creation of algae blooms Increased nutrients Iron is found mostly in what sources of water Groundwater Also called the rule of reasonable sharing Riparian Doctrine Water high in salinity and warm is Low in dissolved oxygen Reservoir turnover Denser wate...

Absolute zero is correct answers -460 F The mechanical equivalent of heat is correct answers 778 BTUs The failure of a brick furnace lining is called correct answers Spalling The amount of heat required to change the state of a substance is called correct answers Latent The section of solid plate between tube holes is called a correct answers Ligament The external covering of a boiler is called correct answers Lagging The instrument used to test flue gases for proper combustion...

Water Treatment Operator Certification Study Guide test exam 2024/2025 A continuously flowing watercourse Perennial Stream Algae causes PH to ....... at night Decrease What contributes to creation of algae blooms Increased nutrients Iron is found mostly in what sources of water Groundwater Also called the rule of reasonable sharing Riparian Doctrine Water high in salinity and warm is Low in dissolved oxygen Reservoir turnover Denser water at surface sinking ...