Alkalinity - Study guides, Class notes & Summaries

CWEA Grade I Laboratory Analyst Questions and Answers Graded A Chloride - Major anion found in many natural waters - Can impart salty taste in H2O What increases concentration of chloride in wastewater Chloride in human diet and softeners flushed into sanitary sewer system 2 most prevalent methods of measuring chloride argentometric and mercuric nitrate Argentometric Titration of sample with standard solution of silver nitrate (AgNO3) - Indicator: Chromate ions (CrO4) - End point: reddish sil...

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...

Certified Pool Operator Exam (New 2024/ 2025 Update) Questions and Verified Answers| 100% Correct | A Grade QUESTION The Total Alkalinity (TA) and Cyanuric Acid (CA) must be tested how often? Answer: Once per week QUESTION Pool water should be kept a such clarity that the _________ is clearly visible from the pool deck. Answer: main drain QUESTION The leading edge of stair treads shall be marked with a contrasting color band or line at least ____ in...

Food Manager Certification Exam Questions and Answers - Latest Updated | Verified. The first step in cooling a deep pan of rice is to.... A. let the pan sit on the counter for an hour to cool. B. cover the rice tightly with foil. C. place the pan of rice in the walk-in freezer. D. put the rice into shallow pans. - D. put the rice into shallow pans. A cook working for the local nursing home, wants to serve grilled salmon with Hollandaise sauce to the residents. What type of eggs must they ...

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 structures inside c. By breaking bonds and poisoning the cell - b. By att...

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 c 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 d Boiler surfaces may have what appears to ...

It's in the middle of the summer & you're having a breakdown in the coagulation process in your up-flow clarifier due to algae, this problem occurs only in the late afternoon with periods of good operation before and after. What changes should you make during the problem periods to improve the finish water quality? - AnswerReduce the sludge blanket depth The inorganic compounds (ie. Iron) are effectively removed from your raw water using aeration. Test indicate an increasing taste and odor ...

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...

In a pumping station where two complete pumping units are provided, how much should a pump be capable of delivering? a.) Average Flow b.) Maximum Flow c.) 1/2 the average flow d.) 1/2 maximum flow - A When there is insufficient alkalinity present in water to react with the coagulant, alkalinity should be supplied by a.) Adding Lime b.) Adding Turbidity c.) Reducing plant flow d.) Removing carbon dioxide - A Chlorine dioxide is generated on-site by the reaction of chlorine with what che...

CPO Test questions with correct answers 2023Depth markings should be clearly visible by people in the water. Wading pool and spa drains must be anti-vortex AND secured. 01:02 01:20 Pool drains must be secured and fastened with screws if holes are present. If at any time the filter equipment, chemical feed system, pump stops working, or the main drain cover has been removed or is broken, the pool must be closed immediately Pool must have 1.0-10.0ppm Free...