Term
automation of a water system should provide?
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constant pressure low pressure
constant temperature fluctuating pressure
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, 2 of 46
Term
a electrochemical means of preventing corrosion on tank surface
below water line?
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plastic coatings ph control
cathodic protection galvanization
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3 of 46
Term
what is the minimum width of trench on both sides of pipe?
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18'' 6''
24'' 12''
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Term
always use?
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plastic or nylon washer when steel or brass washer when changes
changes are made on the manifold are made on the manifold
lead or fiber washer when
copper or rubber washer when
changes are made on the
changes are made on the manifold
manifold
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5 of 46
Term
boil water notice is sent out if what?
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constant low pressure/bad variable pressure/good
samples/water off continuosly samples/water on intermittently
stable pressure/mixed high pressure/clear samples/water
samples/water off briefly on continuously