TCEQ class c water license exam questions and answers

TCEQ class c water license exam questions and answers State Agency responsible for enforcing the safe drinking water act in Texas Texas Commission on environmental Quality What minerals can cause water hardness Calcium and magnesium Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen A public water system must at all times provide Adequate quantity of water, pressure, and disinfection A source groundwater would be aquifer Fecal coliform organisms sometimes found in water supplies are an indication that Water supply is contaminated, harmful bacteria may be present, possible pathogenic organisms in the water, water is unsuitable for drinking A disease that may be spread by inadequately disinfected water Dysentery A common chemical used in disinfection of small water supply is Calcium hypochlorite A physical connection between a potable water supply and house well would be A cross connection The amount of chlorine in mg/L that is used up by reacting with iron organics of bacteria is called Demand Which of the following is a physical characteristic of chlorine gas Greenish-Yellow Color, heavier than air, pungent penetrating odor, corrosive Which of the following would be considered a part of a hypo-chlorinator system Solution feed pump According to state requirements, all public water Supply wells should be provided with a raised concrete sealing block, screened vents, and- A flow measuring device Drawdown of a water well is determined by Difference in static and pumping levels pH of water indicates If it's acidic or basic The pH of water is expressed on a pH scale of 0-14 Water that is considered neutral is expressed on the pH scale at 7.0 Which of the following is a required Step in collecting a routine distribution sample for bacteriological testing? Use of an approved, sterile sample container Sand filtration will remove which of the following from surface water Turbidity Activated carbon is used in a surface water plant primarily for Taste and odor control