Packing efficiency Study guides, Class notes & Summaries

What is a pathogen? - Answer- Disease-causing microorganisms. What is the impact of algae to water quality? - Answer- Taste and odor problems. What is the concentration of chlorine gas? - Answer- 100%. Which of the following is not used to mix coagulants? - Answer- Horizontal paddle wheel. What is considered to be a quick remedy to adress a sudden increase in filtered water turbidity? - Answer- Feed a filter-aid chemical to the filter influent. What is the likely cause of a pinpin...

Floatable solids are easy to measure. True or False? False A well operated digester normally receives sludge at about __________% volatile solid and reduces it to about ________________% volatile solids. 70-75%, 25-30% According to OSHA, which of the following oxygen in air concentration is the lowest safe concentration for humans to breathe in order to avoid the hazard of oxygen deficiency? 19.5% oxygen The population equivalent factor for BOD is 0.17 lb/day/BOD/person W...

ABSA 4A Exam Questions with 100% Correct Answers 2024/2025 Lowest boiling point of water is at? a. 3000m above the sea level b. Just below sea levelc. at 1000m above sea level d. at 101.3kPa - answera. 3000m above the sea level Efficiency of an electrostatic precipitator is: a. 75% b. 60% c. 90% d. 99.9% - answerd. 99% Non-Return stop valves are important in which situations a. when connected in parallel with other boilers b. when boiler trips c. if boiler ruptures d. all of the ...

PRIME MOVERS FINAL EXAM ACTUAL QUESTIONS AND ANSWERS 2024 UPDATE;(ALREADY GRADED A+)FULL COMPLETE TEST SOLVED 100% Despite their size and complexity, steam plants are widely used because: a) of their low emissions of pollutants b) they are easily located in an urban environment c) they can be run by untrained personnel d) they require minimal amounts of water e) they can burn solid fuels such as coal and wood. Ans- E Connecting Rods on a steam engine: a) convert reciprocating ...

1. Question: We discussed the different types of intermolecular forces in this lesson. Which is the strongest in CF2H2 ? 2. Question: Water is such a special molecule with some really unique properties. Why is it so unusual? 3. Question: We discussed the different types of intermolecular forces in this lesson, which can affect the boiling point of a substance. Which of these has the highest boiling point? 4. Question: If you have 2.00 x 103 J of energy, what mass (g) of solid butane (C4H10O) ...

ECON 2302 FINAL EXAM| VERIFIED SOLUTION ECONOMICS EXAM 3 1. Technology, R & D, and Efficiency. a. Thoroughly and completely explain Invention Invention is the discovery of a product or process through the use of imagination, ingenious thinking, and experimentation and the first proof that it will work. Usually based on scientific knowledge and is the product of individuals, either working on their own or as members of an organization - R&D staff. We live on a planet with fi...

1. Question: We discussed the different types of intermolecular forces in this lesson. Which is the strongest in CF2H2 ? 2. Question: Water is such a special molecule with some really unique properties. Why is it so unusual? 3. Question: We discussed the different types of intermolecular forces in this lesson, which can affect the boiling point of a substance. Which of these has the highest boiling point? 4. Question: If you have 2.00 x 103 J of energy, what mass (g) of solid butane (C4H10O) ...

Z-51 REFRIGERATION TEST With Correct Solutions 2024 Update Efficiency of the refrigerant cycle is affected by the operations of the condenser. Of the following, a more efficient centrifugal compressor operation results from: - Answer -Lowering the condensing pressure The heat removed from the refrigerant in a condenser is: - Answer -Sensible and latent heat The refrigerant unit that you have been assigned to is being taken out of service for a major repair. You have been assigned to withdr...

Water Treatment Operator Certification Study Guide (AWWA) Latest 2023 Rated A+ 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 toward the bottom Water...

3B2 - Ultimate ABSA Study Guide C1-15 | 995 Questions | With All Correct Answers. Turbine nozzles convert heat energy into: a. Potential energy. b. Enthalpy. c. Eddy-currents. d. Kinetic energy. e. Pressure. D Labyrinth seals are: 1. Made of cast iron. 2. A positive leak-proof seal arrangement. 3. Design to have large clearances between the shaft and casing. 4. Made of brass or stainless steel. 5. Used on larger diameter turbine shafts. a. 1, 2. b. 2, 4, 5. c. 3, 4, 5. d. 4,...