Scaling water - Study guides, Class notes & Summaries

What is static head? A) The total equivalent height that a pump lifts water, including friction loss B) Friction loss C)The vertical distance between a reference point to the water surface, when the water is not moving D) The horizontal distance between a reference point to the water - Answer-The vertical distance between a reference point to the water surface, when the water is not moving. How long must water remain stagnant and undisturbed in the pipe before a first draw sample is col...

Certified Pool Operator Test Review(2023) 12 Reasons why the health inspector will close your pool - CORRECT ANSWER-1. pump filter not working for more than an hour 2. main drain is not visible 3. chemical readings out of range 4. no pool operator (15 minute grace period) 5. no lifeguard or cpr certs present 6. water is below the skimmer line 7. danger to the public 8. chlorinator is not working 9. health inspector is not allowed in 10. bathrooms + drains not working 11. flow rat...

What is static head? A. The total equivalent height that a pump lifts water, including friction loss B. Friction loss C. The vertical distance between a reference point to the water surface, when the water is not moving. D. The horizontal distance between a reference point to the water surface - ANSWER C. The vertical distance between a reference point to the water surface, when the water is not moving. If at least 40 samples per month are collected from a public water system , what is th...

Pool Operator Exam Questions with Verified Solutions What are the 11 reasons for closure of the pool? 1) A lifeguard is not on the pool deck of a general use pool, or a spa guard is not on the premises of a spa 2) The main drain is not clearly visible form the nearest lifeguard chair 3) The free chlorine, total bromine, pH, or cyanuric acid readings of the pool water are other than specified under section II, B 1 4) The recirculating equipment is not working properly for more th...

SDI Final Exam Questions and Answers | Latest Version | 2024/2025 | Already Passed What is the primary purpose of a water treatment facility? A) To improve aesthetic quality B) To ensure safe and potable drinking water C) To increase water pressure D) To reduce water costs Which process is commonly used for removing suspended solids from water? A) Filtration B) Coagulation and flocculation C) Reverse osmosis D) Distillation What is the significance of maintaining proper pH...

What substance is abundant in the stratum corneum? - Keratin What are the 3 levels of sanitation? - Sanitation, disinfection, and sterilization When do you renew your license? - September 30th biannually What is pathogenic? - Pus producing dangerous bacteria (harmful) What is aesteatosis? - The dry scaling of the skin, lack of sebum due to extreme cold weather (wind burn) What is absorbic acid that aids in collagen production is also known as what? - Vitamin C What is the lowest form of s...

To be a pool operator you must - ANSWER-Complete a pool operator training course To prevent spinal injury - ANSWER-All of the above The strong suction in the pool (ENTRAPMENT) is the - ANSWER-Main Drain Electrical systems in the pool must have - ANSWER-GFIs (Ground Fault Circuit Interrupters?) The skimmer _____ prevents floating debris from re-entering the pool - ANSWER-WEIR What is filtration? - ANSWER-Physical process of water moving through the system What is the turnover ra...

REHS Exam Practice Test 2 With 100% Correct And Verified Answers What would you expect from a swimming pool with a high pH reading? a. cloudiness, scaling, and irritation to eyes b. cloudiness, corroding, and irritation to the eyes - Correct Answer-a. cloudiness, scaling, and irritation to eyes Which chemical will raise pH? a. Sodium Carbonate b. Calcium Carbonate c. Sodium Bicarbonate d. Sodium Bisulphate d. Ozone - Correct Answer-a. Sodium Carbonate - Soda Ash How would a s...

AFO (Aquatics Facilitator Operator) Glossary Exam Study Guide with Complete Solutions Latest Updated 2024/2025 Acid - Correct Answer A commonly use chemical compound dosed into swimming pools that releases hydrogen ions in water thereby lowering pH Algae - Correct Answer a simple nuisance plant life that colonizes in water under favorable conditions Alkalinity - Correct Answer A measure of the pH-buffering capacity of water Aluminum Sulfate - Correct Answer Alum; a flocculating agent f...

Water Treatment Plant Operator Exam Questions With Answers Latest Updated 2024/2025 (Graded A+) What is used as a chemical coagulant? - Answer Alum The correct order of treatment in a surface water plant is... - Answer Coagulation, Flocculation, Sedimentation and Filtration In determining the proper dosage of alum, the most useful test is the____________ test. - Answer Jar If sludge is not continually removed from the sedimentation basin, its accumulation results in? - Answer Turbidity Th...