BACKFLOW PREVENTION ASSEMBLY Study guides, Class notes & Summaries

In responding to a backflow incident the water purveyor should (A) Call the mayor (B) Implement the emergency response plan (C) Install a vacuum breaker (D) Develop a good excuse - answer-Implement the emergency response plan A mixture of air and gas is considered hazardous when the mixture exceeds what percentage of gthe lower explosive limit (A) 0% (B) 3% (C) 7% (D) 10% - answer-10% To exert a pressure of 1.0 psi at base of a water column the column would have to be ...

Salmonellosis - Answer-A disease caused by pathogenic bacterica (often associated with chicken), which affects the intestinal tract. The primary symptom is severe diarrhea. A valve designed to open in the direction of normal flow and close with the reversal of flow. - AnswerCheck valve Overflow level - Answer-The maximum height that water or liquid will rise in a receptacle before it flows over the rim. Backflow - Answer-A hydraulic condition, caused by a difference in pressures, in which n...

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