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Exam (elaborations)

NCEES EXAM 2025 QUESTIONS AND ANSWERS

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Where to place air release valves - ANS Along the high points of the line Amount of lime to remove carbonate hardness - ANS Lime = co2 + bicarbonate + mg + excess Algae properties - ANS Use light as energy, take up N and P, derive cell carbon from carbon dioxide For Streeter Phelps use time in - ANS Days Algae concentration as P increases - ANS Will grow, consume the P die off, then decrease P concentration Well site is within recharge area - ANS Unconfined Well site is not within recharge area - ANS Confined Well penetrates two layers - ANS Con

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Uploaded on
August 12, 2025
Number of pages
5
Written in
2025/2026
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Questions & answers

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NCEES EXAM 2025 QUESTIONS AND
ANSWERS



Where to place air release valves - ANS Along the high points of the line



Amount of lime to remove carbonate hardness - ANS Lime = co2 + bicarbonate + mg + excess



Algae properties - ANS Use light as energy, take up N and P, derive cell carbon from carbon
dioxide



For Streeter Phelps use time in - ANS Days



Algae concentration as P increases - ANS Will grow, consume the P die off, then decrease P
concentration



Well site is within recharge area - ANS Unconfined



Well site is not within recharge area - ANS Confined



Well penetrates two layers - ANS Confined



Large unit drawdown to produce large yields - ANS Confined aquifer
1
Page




@COPYRIGHT FYNDLAY 2025/2026

, Contamination is likely to reach well water more quickly - ANS Unconfined



Specific Capacity of pump well = - ANS Q/(drawdown -elev)



Unconfined aquifer one dimensional flow - ANS Q = -kA(dh/dx)



Total aquifer transmissivity - ANS Is additive! T = k1b1 + k2b2...



Volume of Unit hydrograph - ANS 1/2 b * h



Pressure __ and v __ bernulli - ANS Drops and increases



2 12" pipes combine to 1 - ANS 16"



Lagoons must have - ANS 10x storage backwash for 24 hrs, depth of 3 ft, length = 4W



Place pressure meter - ANS Where there is pressure flow!



Extended aeration basin of activated sludge requires - ANS 3ft3/population equivalent



Total flow to storage = - ANS Max over 30 days - Max daily



Flumes are best for - ANS Flow measurement



Q ultimate for a fully underwater footing depends on - ANS Effective unit weight = Saturated
2




- unit weight of water
Page




@COPYRIGHT FYNDLAY 2025/2026

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