Class C Water Operator License Exam Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) Ammonia mixed with chlorine gas creates a - Correct Answers ✅white smoke The most difficult part of a water distribution operator's job. - Correct Answers ✅furnish a continuous supply Physical connection between a safe and potentially unsafe water source. - Correct Answers ✅cross connection A distribution system is a - Correct Answers ✅looped system Dead end mains should be flushed - Correct Answers ✅every month Excess nitrate causes a condition called - Correct Answers ✅blue baby syndrome Water hardness is caused by - Correct Answers ✅calcium and magnesium Sewer mains should be __ft away from water mains. - Correct Answers ✅9 1 / 3
Class C Water Operator License Exam Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) Water with a pH less than 7 is considered to be - Correct Answers ✅acidic Bacti records are kept for ____yrs and chemical records are kept for ___yrs. - Correct Answers ✅5, 10 Bacti samples have to be returned to the lab within ___hrs of the collection time. - Correct Answers ✅30 Color in the water supply should be less than _____ units. - Correct Answers ✅15 Chlorine is ______ times heavier than air. - Correct Answers
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90% of underground pipe failures are related to improper - Correct Answers ✅backfill and bedding The spoil bank should be located at least ___ft away from the ditch. - Correct Answers ✅2 The following minimum residuals is ______mg/L for free chlorine and ____mg/L for total chlorine. - Correct Answers
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Class C Water Operator License Exam Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) Public opinion of the water utility is _______ at a standstill. - Correct Answers ✅never A bacti sample should be taken every ____ft of pipe. - Correct Answers ✅1000 The most common collection point for a bacti sample is the water tap _______. - Correct Answers ✅outside the house A standpipe is considered ground storage unless it exceeds _____ft above the highest ________. - Correct Answers ✅80, service connection ________ protection is the electrochemical method for preventing ________ of metal tanks. - Correct Answers ✅cathodic, corrosion The _____ is the only cross connection control method approved by _______. - Correct Answers ✅air gap, tceq _______ on a pipeline depend on the _____ or coefficient of pipe roughness. - Correct Answers ✅friction loss, c factor
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