WATER DISTRIBUTION GRADE IV - PRACTICE EXAM 3 QUESTIONS WITH CORRECT ANSWERS 2026

WATER DISTRIBUTION GRADE IV - PRACTICE EXAM
3 QUESTIONS WITH CORRECT ANSWERS 2026


A Ycouple Ytest Yin Ya Ydistribution Ysystem Yis Yused Yto Y(chose Ybest Yanswer) Y- YCORRECT
YANSWER Y- YDetermine Yscaling Yor Ycorrosion Yrate




Normally, Ysurface Ywater Y& Ygroundwater Yhave Ya YpH Yrange Yof Y-RCORRECT YANSWER Y-6.8 Yto Y8.5




A Y"competent Yperson" Ymust Yinsect Yexcavation Y& Yadjacent Yareas Yfor Yhazards Y- YCORRECT
YANSWER Y- YDaily, Yprior Yto Ythe Ystart Yor Ywork, Yand Yas Yneeded Ythroughout Ythe Yshift




Moderately Yhard Yhas Ya Yrange Yof Y mg/L Yas Ycalcium Ycarbonate Y- YCORRECT
YANSWER Y- Y61 Yto Y120




Common Yremoval Ymethod Yfor Yhydrogen Ysulfide Yfrom Ywater Y- YCORRECT YANSWER Y-Aeration




Lead Yin YdrinkingRwater Ycan Yresult Yin Y- YCORRECT YANSWER Y-Impaired Ymental Yfunctioning Yin
Ychildren

, Pump Yperformance Ycurve Yreflect Y- YCORRECT YANSWER Y-Pump Yhorsepower




AccordingRto Ythe YAWWA Ywhat Yflow Yrate Ycould Ybe Yexpected Yfro Ya Y"Red" Yfire
Yhydrant? Y- YCORRECT YANSWER Y-0 YGPM Y- Y500 YGPM




A Ywharf Yhydrant Ynozzle Yis Y- YCORRECT YANSWER Y-2"




A Ynoisy Y& Yvibrating Ygate Yvalve Yindicates Y- YCORRECT YANSWER Y-Cavitation




Difference Ybetween YTier Y1 Yand YTier Y2 Yviolations YisR- YCORRECT YANSWER Y-

Tier Y1 Yviolations Ypotentially Yimpose Ydirect Y& Yadverse Yhealth Yeffects; YTier Y2 Ydon't




Devise Yused Yto Ymeasure Ydistribution Ysystem Yflow Y- YCORRECT YANSWER Y-Pitot Ygauge