Soda ash is - Study guides, Class notes & Summaries

CPO Test with elaborated answers 2023 11 reasons why the health dept will close your pool - CORRECT ANSWER-1. danger to the public 2. no lifeguard on the deck 3. main drain not visible 4. free chlorine, bromine, pH or cyanuric acid are other than specified 5. recirculating equipment not working for more than 1 hour 6. chemical disinfectant feeder has not been functional for over 24 hours 7. bathhouse drainage system is blocked to render the bathhouse unusable 8. inspector denied ent...

REHS Exam Questions with 100% Correct Answers. What would you expect from a swimming pool with a high pH reading? - CORRECT ANSWER Cloudiness and eye irritation Which will raise the pH of a pool? a. Calcium Bicarbonate b. Calcium Carbonate c. Soda Ash or Caustic Soda - CORRECT ANSWER Soda Ash or Caustic Soda Soda ash is - CORRECT ANSWER Sodium Carbonate NaCO3 Caustic Soda is - CORRECT ANSWER NaOH Which chemical is used to oxygenate swimming pool water? a. Ozone b. Sodi...

Sanitarian Exam Questions With Correct Answers (Study Guide) Latest Updated 2024/2025 (Graded A+) What is the correct order for warewashing? - Answer wash-rinse-sanitize-airdry Employees should wash their hands for a minimum of? - Answer 20 seconds What animal is most likely to carry rabies? - Answer Bats How often should a restaurant septic be inspected? - Answer anually What are some degradable pollutants? - Answer Oil and Grease, Organic Matter, Phenols, Cyanides, ammonia, nitrites, and ...

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 ...

How much clearance from the top of the boiler is needed for a HP boiler that produces 70000 lbs of steam? correct answers 7 feet On a gas fired boiler what is the proper gas to air mixture correct answers 30%-70% and in special arrangements it can be as high as 100% . ANSWER CHAPTER 11 remember% What is the total hardness in a system that was found to have calcium hardness of 60ppm and magnesium hardness of 18ppm and carbon hardness of 12 ppm? correct answers TH=(Ca x 2.5) + (Mg x 4.1)nT...

REHS Practice Test Questions and answers, rated A+ Test Bank Questions 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...

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...

Pool Operator's Final Exam UPDATED ACTUAL Questions and CORRECT Answers The percentage of hypoclorous acid formation is most influenced by: - CORRECT ANSWER- pH Pool painting is usually done: - CORRECT ANSWER- Before opening in the spring When a pool is chlorinated with gas chlorine, the operator must also use: - CORRECT ANSWER- Soda Ash

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

Stationary Engineer Questions and Answers Already Passed How much clearance from the top of the boiler is needed for a HP boiler that produces 70000 lbs of steam? 7 feet On a gas fired boiler what is the proper gas to air mixture 30%-70% and in special arrangements it can be as high as 100% . ANSWER CHAPTER 11 remember% What is the total hardness in a system that was found to have calcium hardness of 60ppm and magnesium hardness of 18ppm and carbon hardness of 12 ppm? TH=(Ca x 2.5...