Catalogue

Browse all available quizzes, quizbooks, articles, textbooks, SynLearn templates, and SynPrep practice tracks.

1890 learning items

Subject:

Sort:

Showing 181–192 of 1890 items

Quiz

04. Sludge Removal & Clarifier Troubleshooting

Practice sludge removal & clarifier troubleshooting. Assumes basic treatment-process vocabulary. Develop sludge monitoring, safe troubleshooting and withdrawal planning. Includes 14 independent questions with instructional explanations. Cover: [Absetzbecken Wasserwerk Juist](https://commons.wikimedia.org/wiki/File:Absetzbecken_Wasserwerk_Juist.JPG) by 4028mdk09, [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/); resized and JPEG recompressed. Adapted image distributed under CC BY-SA 3.0.

environmental-engineering

Nov 2, 2026

14 questions

Quiz

03. High-Rate Settlers: Tube & Plate (Lamella) Settlers

Practice high-rate settlers: tube & plate (lamella) settlers. Assumes basic treatment-process vocabulary. Develop settler operation, maintenance and retrofit judgment. Includes 12 independent questions with instructional explanations. Cover: [Fort Smith Municipal Water Plant 03](https://commons.wikimedia.org/wiki/File:Fort_Smith_Municipal_Water_Plant_03.jpg) by Brandonrush, [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/); resized and JPEG recompressed. Adapted image distributed under CC BY-SA 3.0.

environmental-engineering

Nov 2, 2026

12 questions

Quiz

02. Detention Time & Hydraulic Loading in Clarifiers

Practice detention time & hydraulic loading in clarifiers. Assumes basic treatment-process vocabulary and US customary unit conversions. Develop dimensional calculations and flow-change interpretation. Includes 14 independent questions with instructional explanations. Cover: [Shreveport Water Works Museum December 2017 10 (settling basin)](https://commons.wikimedia.org/wiki/File:Shreveport_Water_Works_Museum_December_2017_10_(settling_basin).jpg) by Michael Barera, [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/); resized and JPEG recompressed. Adapted image distributed under CC BY-SA 3.0.

environmental-engineering

Nov 2, 2026

14 questions

Quiz

01. Sedimentation Basin Zones & Principles

Practice sedimentation basin zones & principles. Assumes basic treatment-process vocabulary. Develop basin-zone interpretation and hydraulic diagnosis. Includes 12 independent questions with instructional explanations. Cover: [Fort Smith Municipal Water Plant 04](https://commons.wikimedia.org/wiki/File:Fort_Smith_Municipal_Water_Plant_04.jpg) by Brandonrush, [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/); resized and JPEG recompressed. Adapted image distributed under CC BY-SA 3.0.

environmental-engineering

Nov 2, 2026

12 questions

Quiz

04. Dry Feeders, Jar Test Conversions & Solution Dilutions

Connect dry-feeder catch tests, jar-test concentrations and stock dilution to plant feed settings. Requires mass/volume units, percentages and the pound formula. Use compatible concentration bases, tare weights and final total volume.

environmental-engineering

Nov 2, 2026

12 questions

Quiz

03. Liquid Chemical Feeds, % Strength & Specific Gravity

Translate certified chemical strength and specific gravity into active mass per gallon and metering-pump delivery. Requires the pound formula and percent-to-fraction conversion. Distinguish mass percentage, available-chlorine basis and measured calibration.

environmental-engineering

Nov 2, 2026

12 questions

Quiz

02. The Davidson "Pound Formula" & Pure Chemical Feeds

Practice the Davidson pound formula for pure-chemical mass, applied dose, limiting flow and batch treatment. Requires MGD conversions and dimensional analysis. Feed calculations describe applied mass; they do not certify residual or disinfection credit.

environmental-engineering

Nov 2, 2026

10 questions

Quiz

01. Fundamental Conversions & Dimensional Analysis

Practice US customary flow, volume, water-mass, pressure-head and temperature conversions. Bring arithmetic and ratio skills; learn to choose conversion factors, preserve units and diagnose time-basis errors.

environmental-engineering

Nov 2, 2026

12 questions

Quiz

04. Membrane Filtration (Microfiltration, Ultrafiltration & RO)

Master membrane filtration technologies, pore size classifications, hydraulic performance calculations, and integrity testing. Practice 10 advanced problems covering Microfiltration (MF), Ultrafiltration (UF), Nanofiltration (NF), and Reverse Osmosis (RO), Transmembrane Pressure (TMP), permeate flux in gfd, recovery rate %, salt rejection %, temperature viscosity effects, Clean-in-Place (CIP) protocols (acid vs caustic), and daily Pressure Decay Testing (PDT) for pathogen barrier certification. Every item includes full step-by-step unit cancellation and distractor rationales. Prerequisites: Filtration hydraulics and chemical pretreatment. Photo by Watercareservice on Wikimedia Commons, licensed under CC BY-SA 4.0.

drinking water treatment operator (grades 1 & 2)

Nov 2, 2026

10 questions

Quiz

03. Backwashing Procedures & Filter Ripening

Master backwashing operations, auxiliary scour, bed fluidization hydraulics, and filter-to-waste ripening protocols in water treatment plants. Practice 10 comprehensive calculation and troubleshooting problems covering 20%–30% bed expansion, upward rise rate conversions (inches per minute vs gpm/sq ft), water temperature and viscosity impacts on wash rates, filter-to-waste turbidity maturation, and diagnosis of media defects (mudballs, air binding, media boils). Every item includes full step-by-step unit cancellation and distractor rationales. Prerequisites: Filter media construction and filtration hydraulics. Photo by Fallaner on Wikimedia Commons, licensed under CC BY-SA 4.0.

drinking water treatment operator (grades 1 & 2)

Nov 2, 2026

10 questions

Quiz

02. Filtration Hydraulics: Head Loss & Turbidity Breakthrough

Analyze filtration hydraulics, head loss accumulation, particle capture mechanisms, and turbidity breakthrough in gravity filters. Practice 10 operational problems covering differential pressure conversion, clean-bed vs terminal head loss (6–9 feet), particle capture mechanisms (straining, interception, adsorption), rate-of-flow controller failures, EPA IESWTR compliance criteria (0.30 NTU 95th percentile, 1.0 NTU max), and Individual Filter Effluent (IFE) targets. Every item includes full step-by-step unit cancellation and distractor rationales. Prerequisites: Filter media bed construction and basic hydraulics. Photo by Fallaner on Wikimedia Commons, licensed under CC BY-SA 4.0.

drinking water treatment operator (grades 1 & 2)

Nov 2, 2026

10 questions

Quiz

01. Filter Media & Bed Construction

Master granular media filter configurations, material characteristics, and bed construction in drinking water treatment facilities. Practice 10 original calculation and diagnostic problems covering rapid sand, dual-media (anthracite/sand), and multimedia (anthracite/sand/garnet) stratification, effective size ($$d_{10}$$), uniformity coefficient ($$UC = d_{60}/d_{10}$$), underdrain systems (Wheeler, Leopold blocks), and surface loading rates. Every item includes full step-by-step unit cancellation and distractor rationales. Prerequisites: Basic water treatment math and hydraulics. Photo from U.S. Environmental Protection Agency via Wikimedia Commons.

drinking water treatment operator (grades 1 & 2)

Nov 2, 2026

10 questions