B test material TCEQ Class B Surface Water Exam Correctly Answered Latest Update

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B test material - TCEQ Class B Surface Water | Q&A Latest 2025/2026 | 100% PASS What is the most important factor affecting the useful life of service lines? - Answer -It is the ability of the material to resist internal and external corrosion When does Suction Head exist? - Answer -Suction head exists when the source of supply is above the centerline of the pump. What is Net positive Suction Head (NPSH) - Answer -NPSH is the pressure under which water enters the eye of the impeller in a centrifugal pump. Insufficient NPSH is the main cause of pump cavitation Explain and expand on Chlorine Dioxide (what it reacts with, oxidizes, etc) - Answer -Chlorine Dioxide is a gas used in small quantities to disinfect water. It does not react with organics to form THMs and HAAs. It oxidizes phenols, manganese, iron, sulfurous and organic compounds which aids in the removal of tastes and odors. It is a very effective bactericide and a superior virocide. It dies not combine with ammonia. Chlorine Dioxide MRDL is .8 mg/L and monitoring procedures are the same as for chlorine. The Chlorite MCL is .q mg/L and must be monitored daily. What is texas drinking water pH requirements? - Answer -The texas drinking water requirements require a pH > 7.0 for the water treatment