Cwea grad - Study guides, Class notes & Summaries

CWEA Collection Systems Maintenance;Practice Questions and Answers for CWEA Grade 1 and 2 Tests 2023 Solved 1. Why are gasoline and volatile solvents objectionable when present in a sewer?: They produce an explosion hazard 2. You should never attempt to install, troubleshoot, maintain, repair, or re- place electrical equipment unless:: You know what you are doing, are qualified, and are authorized. 3. How many different areas of traffic zones are there when working in roadways?: Five 4. Why ...

CWEA Collection Systems Maintenance;Practice Questions and Answers for CWEA Grade 1 and 2 Tests 2023 Solved

CWEA Grade 4 Test Part 2 _335

Why are gasoline and volatile solvents objectionable when present in a sewer? -️️ They produce an explosion hazard You should never attempt to install, maintain, repair or replace electrical equipment panels, controls, wiring or circuits unless -️️ You know what you are doing, are qualified and are authorized What are the different areas of traffic zones? -️️ Advance Warning Area, Transition Area, Activity Area (buffer space and work space), Termination Area. Could be 4 or 5, j...

CWEA Grade 4 Test Part 2 Exam Questions and Answers 2024.

CWEA Grade 4 Test Part 2 _335 with complete solution

CWEA GRADE 4 TEST PART 2 100% ACCURATE REVIEW EXAM SOLUTION Acid: - Answer-A substance which releases hydrogen ions when dissolved in water. Most acids will dissolve the common metals and will react with a base to form a neutral salt and water. An acid is the opposite of an alkali, has a pH rating lower than 7.0, will turn litmus paper red, and has a sour taste. Acidity: - Answer-The quantitative capacity of water or a water solution to neutralize an alkali or base. It is usually measur...

AA - Answer-atomic absorption AC - Answer-power alternating current ac - Answer-acre AF - Answer-acre-foot (feet) AFY - Answer-acre-foot per year AMSA - Answer-Association of Metropolitan Sewerage Agencies ANSI - Answer-American National Standards Institute APHA - Answer-American Public Health Association AS - Answer-activated sludge ASCE - Answer-American Society of Civil Engineers ASME - Answer-American Society of Mechanical Engineers ASTM - Answer-American Society for Testing and...

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 silver chromate Mercuric Nitr...