Class C Water Operator License Exam Fully Solved 2024.

Ammonia mixed with chlorine gas creates a - Answer white smoke The most difficult part of a water distribution operator's job. - Answer furnish a continuous supply Physical connection between a safe and potentially unsafe water source. - Answer cross connection A distribution system is a - Answer looped system Dead end mains should be flushed - Answer every month Excess nitrate causes a condition called - Answer blue baby syndrome Water hardness is caused by - Answer calcium and magnesium Sewer mains should be __ft away from water mains. - Answer 9 Water with a pH less than 7 is considered to be - Answer acidic Bacti records are kept for ____yrs and chemical records are kept for ___yrs. - Answer 5, 10 Bacti samples have to be returned to the lab within ___hrs of the collection time. - Answer 30 Color in the water supply should be less than _____ units. - Answer 15