Water Distribution Level 1 Study Test Final Exam With Correct Solutions

Water Distribution Level 1 Study Test Final
ii ii ii ii ii ii



Exam With Correct Solutions
ii ii ii
ii
ii ii


ii

Chlorination iiis iithe iimost iicommon iimeans iiof iidisinfection iiused iitoday iito iiprotect
iithe ii
ii
public's iihealth ii- iiCORRECT iiANSWER-
True
ii

As iiwater iimains iiand iireservoirs iibecome iiolder, iithey iirequire iiless iiand iiless
iimaintenance. ii-
ii
CORRECT iiANSWER-

False
ii

Routine iiwater iiquality iimonitoring iiof iidistribution iisystems iiconsists iiof iicollecting
iisamples ii
ii
at iiremote iilocations iiin iithe iisystem iiand iitesting iifor iichlorine iiresidual iiand iicoli
iiforms ii-
ii
CORRECT iiANSWER-


True
ii

Existing iicontaminant iilimits iimar iibe iimodified iiis iiEPA's iiongoing iiresearch iireveals
iinew ii


information iiabout iithe iieffects iiof iia iiparticular iisubstance ii- iiCORRECT iiANSWER-
True
ii

Reservoirs iithat iiare iinot iiheavily iiused iican iibe iia iisource iiof iitaste, iiodor, iiand
iicontamination ii
ii
problems ii- iiCORRECT iiANSWER-
True
ii

When iisomeone iicontacts iiyou iicomplaining iithat iitheir iidrinking iiwater iilooks iimuddy,
iitaste ii
ii
bad, iior iismells iibad, iiyou iineed iinot iibe iiconcerned. ii- iiCORRECT iiANSWER-
False
ii

The iilack iiof iicirculation iiin iia iidead iiend iicreates iinearly iiideal iiconditions iifor iidegrading
iiwater ii
ii
quality ii- iiCORRECT iiANSWER-
True
ii

Ground iiwaters iiare iimore iisusceptible iito iicontamination iithan iisurface iiwaters. ii-
iiCORRECT ii
ii
ANSWER-False
ii

, A iiwater iisupply iithat iius iisatisfactory iiin iiquality iifor iione iipurpose iimight iibe
iientirely ii
ii
unsatisfactory iifor iianother ii- iiCORRECT iiANSWER-
True
ii

Chloramines iiare iiconsidered iia iimore iipowerful iidisinfectant iithan iichlorine. ii-
iiCORRECT ii
ii
ANSWER-False
ii

Under iiwhat iiconditions iimay iiwater iimains iibe iilocated iiadjacent iito iisewer iilines? ii-
iiCORRECT iiANSWER-When iiphysical iiconditions iior iisoil iiconditions iiprevent iiminimum

iiseparation iidistances iifrom iibeing iimet ii
ii

How iican iicorrosion iibe iiprevented iion iithe iiinsides iiof iicement iior iimetal iipipes? ii-
iiCORRECT ii
ii
ANSWER-Line iiwith iiasphalt iior iicoal iitar
iicoatings
ii

What iiinfluences iithe iiknowledge iiand iiskills iirequired iito iiwork iias iia iiwater iidistribution
iisystem iioperator iiin iia iigiven iisystem? ii- iiCORRECT iiANSWER-The iisize iiand iitype iiof

iiwater iidistribution iisystem ii
ii

What iiare iiorganics? ii- iiCORRECT iiANSWER-Chemical iisubstances iithat iiare iibased iion
iithe ii
ii
element
iicarbon
ii

Why iiare iichloramines iimore iieffective iiagainst iibiofilms iithan iichlorine? ii-
iiCORRECT ii
ii
ANSWER-More
iipersistent
ii

Why iihave iidrinking iiwater iiquality iistandards iibeen iiprepared iiand iiused? ii- iiCORRECT
iiANSWER-Tp iiprovide iithe iineeded iiquality iicontrol iiand iiensure iithe iiacceptability iiof iithe

iiproduct ii
ii

Why iiis iiwater iiquality iimonitoring iiof iidistribution iisystems iiimportant? ii- iiCORRECT
iiANSWER-to iiidentify iiwhen iiand iiwhere iiwater iiquality iichanges iioccur iiin iithe iisystem. ii
ii

When iiwater iilines iiare iibeing iirepaired, iihow iican iipossible iicontamination iiof iithe iiwater
iiline ii
ii
be iiprevented? ii- iiCORRECT iiANSWER-Keep iithe iihole
iidewatered
ii

What iiare iipathogens? ii- iiCORRECT iiANSWER-disease iicausing iiorganisms ii
ii

What iiis iithe iiprimary iiresponsibility iiof iia iiwater iitreatment iiplant? ii- iiCORRECT
iiANSWER-to ii