Class d water treatment operator

Water Treatment Operator Level 1 Sample Questions with answers

_______ is the final step in removing suspended matter and chlorine resistant microorganisms. - CORRECT ANSWER -Filtration ____________ is buildup of oxidized iron, calcium carbonate, or other chemicals in mains. High pressure water, pigs or swabs, and chemicals are methods of removing scale. - CORRECT ANSWER -Tuberculation _____________ is the process where ice and snow evaporate into the atmosphere without first melting into a liquid form. - CORRECT ANSWER -Sublimation 1 psi = ___...

Polarity - water is a polar molecule with one oxygen atom negatively charged and two hydrogen atoms positively charged. Universal solvent - Water - due to its polarity and ability to dissolve other polar molecules Hydrogen bonds - The weak intermolecular bonds that form between the hydrogen atom of one water molecule and the oxygen atom of another water molecule. Solvent - Does the dissolving Solute - Substance being dissolved Solution - Solvent +Solute=Solution Ex. Jello, Koolaid, and...