Soda ash is Study guides, Class notes & Summaries

The percentage of hypochlorous acid formation is most influenced by: (Ans- pH Pool painting is usually done: (Ans- Before opening in the spring When a pool is chlorinated with gas chlorine, the operator must also use: (Ans- Soda Ash The term "chlorine demand" refers to: (Ans- The amount of chlorine which will react with substances in the pool Re-circulation pumps used in swimming pools are the type called: (Ans- Centrifugal pumps Reversing the flow of water through the fil...

Which disinfectant would work best against cryptosporidium? - Ozone The pH of a water sample is greater that the pHs so the Langlier index? - Indicates the water is scale forming. When water high in calcium bicarbonate is softened by ion exchange - Sodium bicarbonate remains in the product water. Lime softening can effectively disinfect water because: - The pH level is higher than 10.5 A noncarbonate hardness compound is - MgSO4 What term refers to the reintroduction of carbon dioxide int...

Which disinfectant would work best against cryptosporidium? - ️️Ozone The pH of a water sample is greater that the pHs so the Langlier index? - ️️Indicates the water is scale forming. When water high in calcium bicarbonate is softened by ion exchange - ️️Sodium bicarbonate remains in the product water. Lime softening can effectively disinfect water because: - ️️The pH level is higher than 10.5 A noncarbonate hardness compound is - ️️MgSO4 What term refers to th...

Certified Pool Operator Exam Prep (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A Q: You can become sick from ingesting water infected with Legionella bacteria Answer: false Q: Channeling of filters occurs when: Answer: the FMR is exceeded, and water cuts a channel through the media Q: The only physical factor that affects water balance is: Answer: temperature Q: To be classified as a disinfectant, a compound must kill or ...

REHS Questions and Answers Rated A What would you expect from a swimming pool with a high pH reading? Cloudiness and eye irritation Which will raise the pH of a pool? a. Calcium Bicarbonate b. Calcium Carbonate c. Soda Ash or Caustic Soda Soda Ash or Caustic Soda Soda ash is Sodium Carbonate NaCO3 Caustic Soda is NaOH Which chemical is used to oxygenate swimming pool water? a. Ozone b. Sodium Carbonate c. Sodium Bicarbonate d. Calcium Carbonate Sodium Carbonate How would a swimmer most...

Topped out correct answers Installing the last beam on a steel construction project is known as what? Dome correct answers An arch rotated around its vertical centerline is the definition of what? Fly ash correct answers What type of concrete admixture is a recyclable material, produced from coal fired power plants and increases the strength and workability in concrete? 85% correct answers Clear glass transmits what percentage of visible light? Flashing correct answers Special detail...

The percentage of hypoclorous acid formation is most influenced by: : pH Pool painting is usually done: : Before opening in the spring When a pool is chlorinated with gas chlorine, the operator must also use: : Soda Ash The term "chlorine demand" refers to: : The amount of chlorine which will react with substances in the pool Re-circulation pumps used in swimming pools are the type called: 2 | P a g e : Centrifugal pumps Reversing the flow of water through the filters is called: : ...

Soil permeability procedure involves evaluating a soil core or test pit. What does the procedure yield? a. Permeability estimated seepage rate b. Permeability estimated application rate c. Permeability estimated range correct answer: b. Permeability estimate How does chlorine kill microorganisms and bacteria? a. By weakening enzymes and destroying internal organelles b. By attacking lipids in cell walls and destroying enzymes and structures inside c. By breaking bonds and poisoning...

REHS Practice Test Questions and Answers 100% Accurate Soil permeability procedure involves evaluating a soil core or test pit. What does the procedure yield? a. Permeability estimated seepage rate b. Permeability estimated application rate c. Permeability estimated range b. Permeability estimate How does chlorine kill microorganisms and bacteria? a. By weakening enzymes and destroying internal organelles b. By attacking lipids in cell walls and destroying enzymes and structure...

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 ...