ADEQ Water Distribution Grade 1 Exam
With Correct Solutions 2024
It .is .best .to .use .__________ .to .determine .the .hydraulic .grade .line. .- .correct
.answer.Pressure .gauges
What .are .the .3 .most .common .types .of .centrifugal .pump .impellers? .- .correct
.answer.Closed, .semi-open, .open
What .is .the .purpose .of .a .check .valve? .- .correct .answer.To .control .the .direction .of .flow
Where .would .be .the .best .place .for .hydrants .to .be .located?
A .- .Close .to .buildings
B .- .Near .the .street
C .- .Near .street .intersections
D .- .Behind .protective .barriers .- .correct .answer.C .- .Near .street .intersections
What .type .of .mechanical .pipe .cleaning .unit .has .high-carbon .spring-steel .blades? .-
.correct .answer.Metal .scrappers
What .could .the .loss .of .pressure .in .a .water .system .possibly .cause, .besides .compromising
.fire .fighting .capabilities? .- .correct .answer.Contamination .due .to .backflow/backsiphonage
______________ .valves .are .most .often .used .where .pressure .is .relatively .high .and
.positive .shutoff .is .required, .such .as .the .discharge .of .a .high-lift .pump. .- .correct
.answer.Large .plug
It .is .best .to .have .an ._________________ .to .prevent .the .collapse .of .a .pipe .when .it .is
.being .emptied. .- .correct .answer.Air-and-vacuum .relief .valve
What .is .a .cross-connection? .- .correct .answer.Temporary .or .permanent .physical
.connection .between .potable .water .and .unapproved .sources
What .does .high .water .pressure .cause?
A .- .More .main .and .service .leaks
B .- .More .hot .water .tank .failures
C .- .More .appliance .failures
D .- .All .of .the .above .- .correct .answer.D .- .All .of .the .above
, An .advantage .of ._________________ .is .that .there .is .no .flow .of .water .from .a .broken
.hyrdant. .- .correct .answer.Dry .barrel .hydrants
What .type .of .pipe .has .high .tensile .strength, .is .low .cost, .and .is .good .hydraulically .when
.lined .but .is .subject .to .general .corrosion .if .installed .unprotected .in .a .corrosive
.environment? .- .correct .answer.Steel .pipe
What .type .of .meter .should .have .a .strainer .installed .ahead .of .the .flow .into .it .to .protect .it
.from .sediment .and .other .objects .in .the .water? .- .correct .answer.Compound .meter
What .should .be .inspected .on .a .altitude .valve .that .fills .an .elevated .tank?
A .- .Opening .and .closing .speed .to .prevent .water .hammer
B .- .Make .sure .no .oil .leaks .that .could .contaminate .the .water
C .- .Make .sure .valve .is .letting .enough .water .in .to .fill .the .tank
D .- .Both .A .and .C .- .correct .answer.D .- .Both .A .and .C
What .type .of .large .water .storage .is .usually .equipped .with .an .adjacent .pumping .system
.that .can .be .used .in .an .emergency .to .pump .water .to .the .distribution .system? .- .correct
.answer.Standpipes
What .type .of .valve .is .used .in .the .distribution .system .where .the .main .is .not .buried .very
.deep? .- .correct .answer.Horizontal .gate .valve
Water .utilities .that .purchase .their .water .during .off-peak .hours .will .usually .pay .much .less.
.The .rate .charge .for .this .water .is .often .called .______________. .- .correct .answer.Off-peak
.charge
What .can .help .a .water .utility .avoid .using .large .pumps? .- .correct .answer.Elevated .storage
.tanks
Large .pumps .should .be .started .with .the .discharge .valve ._____________. .If .a .foot .valve
.does .not .exist .and .no .head .is .on .the .suction .side .of .the .pump, .it .should .be .primed .using .a
.____________. .- .correct .answer.Closed .and .Vacuum .pump/ejector .operated .with .steam,
.air .or .water
If .large .capacity .and .close .accuracy .at .low .flows .are .important, .what .type .of .meter .is
.best? .- .correct .answer.Compound-type .meter
The .lowest .minimum .pressure .in .distributions .systems .of ._______________ .is .a
.standard .in .many .states .and .water .system .guidelines. .- .correct .answer.20 .psi
Which .form .of .chlorine .is .most .effective .in .killing .bacteria?
A .- .Sodium .hypochlorite .
B .- .Combined .available .chlorine
C .- .Total .chlorine
With Correct Solutions 2024
It .is .best .to .use .__________ .to .determine .the .hydraulic .grade .line. .- .correct
.answer.Pressure .gauges
What .are .the .3 .most .common .types .of .centrifugal .pump .impellers? .- .correct
.answer.Closed, .semi-open, .open
What .is .the .purpose .of .a .check .valve? .- .correct .answer.To .control .the .direction .of .flow
Where .would .be .the .best .place .for .hydrants .to .be .located?
A .- .Close .to .buildings
B .- .Near .the .street
C .- .Near .street .intersections
D .- .Behind .protective .barriers .- .correct .answer.C .- .Near .street .intersections
What .type .of .mechanical .pipe .cleaning .unit .has .high-carbon .spring-steel .blades? .-
.correct .answer.Metal .scrappers
What .could .the .loss .of .pressure .in .a .water .system .possibly .cause, .besides .compromising
.fire .fighting .capabilities? .- .correct .answer.Contamination .due .to .backflow/backsiphonage
______________ .valves .are .most .often .used .where .pressure .is .relatively .high .and
.positive .shutoff .is .required, .such .as .the .discharge .of .a .high-lift .pump. .- .correct
.answer.Large .plug
It .is .best .to .have .an ._________________ .to .prevent .the .collapse .of .a .pipe .when .it .is
.being .emptied. .- .correct .answer.Air-and-vacuum .relief .valve
What .is .a .cross-connection? .- .correct .answer.Temporary .or .permanent .physical
.connection .between .potable .water .and .unapproved .sources
What .does .high .water .pressure .cause?
A .- .More .main .and .service .leaks
B .- .More .hot .water .tank .failures
C .- .More .appliance .failures
D .- .All .of .the .above .- .correct .answer.D .- .All .of .the .above
, An .advantage .of ._________________ .is .that .there .is .no .flow .of .water .from .a .broken
.hyrdant. .- .correct .answer.Dry .barrel .hydrants
What .type .of .pipe .has .high .tensile .strength, .is .low .cost, .and .is .good .hydraulically .when
.lined .but .is .subject .to .general .corrosion .if .installed .unprotected .in .a .corrosive
.environment? .- .correct .answer.Steel .pipe
What .type .of .meter .should .have .a .strainer .installed .ahead .of .the .flow .into .it .to .protect .it
.from .sediment .and .other .objects .in .the .water? .- .correct .answer.Compound .meter
What .should .be .inspected .on .a .altitude .valve .that .fills .an .elevated .tank?
A .- .Opening .and .closing .speed .to .prevent .water .hammer
B .- .Make .sure .no .oil .leaks .that .could .contaminate .the .water
C .- .Make .sure .valve .is .letting .enough .water .in .to .fill .the .tank
D .- .Both .A .and .C .- .correct .answer.D .- .Both .A .and .C
What .type .of .large .water .storage .is .usually .equipped .with .an .adjacent .pumping .system
.that .can .be .used .in .an .emergency .to .pump .water .to .the .distribution .system? .- .correct
.answer.Standpipes
What .type .of .valve .is .used .in .the .distribution .system .where .the .main .is .not .buried .very
.deep? .- .correct .answer.Horizontal .gate .valve
Water .utilities .that .purchase .their .water .during .off-peak .hours .will .usually .pay .much .less.
.The .rate .charge .for .this .water .is .often .called .______________. .- .correct .answer.Off-peak
.charge
What .can .help .a .water .utility .avoid .using .large .pumps? .- .correct .answer.Elevated .storage
.tanks
Large .pumps .should .be .started .with .the .discharge .valve ._____________. .If .a .foot .valve
.does .not .exist .and .no .head .is .on .the .suction .side .of .the .pump, .it .should .be .primed .using .a
.____________. .- .correct .answer.Closed .and .Vacuum .pump/ejector .operated .with .steam,
.air .or .water
If .large .capacity .and .close .accuracy .at .low .flows .are .important, .what .type .of .meter .is
.best? .- .correct .answer.Compound-type .meter
The .lowest .minimum .pressure .in .distributions .systems .of ._______________ .is .a
.standard .in .many .states .and .water .system .guidelines. .- .correct .answer.20 .psi
Which .form .of .chlorine .is .most .effective .in .killing .bacteria?
A .- .Sodium .hypochlorite .
B .- .Combined .available .chlorine
C .- .Total .chlorine
