ACI Concrete Field Testing Technician- Grade I Exam Questions with correct Answers

ACI CONCRETE FIELD TESTING TECHNICIAN- GRADE I EXAM
QUESTIONS WITH CORRECT ANSWERS



1.The gsensor gof gthe gtemperature gmeasuring gdevice gshall gbe gsubmerged ga
gminimum gof g in. g[ mm] ginto gthe gfreshly gmixed gconcrete.: g
ggggggggAns>>3 gin. g[75 gmm]



2.The gtemperature gmeasuring gdevice gshall ghave ga gcapacity gof
gmeasuring gtemperature gof gfreshly gmixed gconcrete gto g+- g

degrees gF g[+- g C] gthroughout ga grange gof g .:
g g g g g g g g g gAns>> g1 gdegree gF g[0.5 gC], g30 gdegrees gF gto g120 gF g[0 gC gto

g50 gC]



3.The gtemperature gmeasuring gdevice gshall gbe gcalibrated g , gor
gwhenever gthere gis ga gquestion gof g .:
g g g g g g gAns>> gAnnually, gaccuracy



4.The gtemperature gof gconcrete gmay gbe gmeasured gin ga gwheelbarrow.
gTrue gor gFalse?: g

g g g g g g g g g g g g gAns>>True



5.The gtemperature gof gconcrete gmay gbe gmeasured gin ga gwall gform.
gTrue gof gFalse:

g g g g g g g g g g g gAns>> gTrue



6.A gcomposite gsample gof gconcrete gis grequired geven gif gthe gonly
gpurpose gfor gobtaining gthe gsample gis gto gdetermine gtemperature. gTrue gof

gFalse?:

g g g g g g g g g g g g g gAns>> gFalse



7.What gmust gbe gdone gto gthe gsample gcontainer gprior gto gsampling gthe
gconcrete?-

:
g g g g g g g g g g g g g gAns>> gDampen g(with gwater)



8.What gmust gbe gdone gto gthe gconcrete gsurrounding gthe gtemperature
gmeasuring gdevice gafter gthe gdevice gis gsubmerged gin gthe gfresh gconcrete.:

g g g g g g g g g g g gAns>> gGently gpress gthe gconcrete garound gthe gtemperature

gmeasuring gdevice gat gthe gsurface gof gthe gconcrete
1 g/
g22

,ACI CONCRETE FIELD TESTING TECHNICIAN- GRADE I EXAM
QUESTIONS WITH CORRECT ANSWERS



9.How glong gmust gthe gtemperature gmeasuring gdevice gremain gin gthe
gfreshly gmixed gconcrete?:

g g g g g g g g g g g g g g gAns>> gAt gleast g2 gminutes gbut gnot gmore gthan g5

gminutes



10.After gthe gtemperature gof gthe gconcrete gis gread, gwhat gis grequired?:
g g g g g g g g g g gAns>> gReporting gof gtemperature



11.The gtemperature gof gconcrete gis greported gto gthe gnearest g degrees
gF g[ C]:
gggggggggggAns>> g1 gdegree gF g[0.5 gC]



12.According gto gASTM gC1064, gwhat gis gone greason gto gtake gthe
gtemperature gof gconcrete?: g

ggggggggggggAns>>Verify gconformance gto ga gspecified grequirement gfor

gtemperature gof gconcrete



13.A gmaximum gtemperature gof gfreshly gmixed gconcrete gis gspecified gin
gASTM gC1064. gTrue gof gFalse?:

g g g g g g g g g g g g g g gAns>> gFalse



14.The gsample gof gconcrete gused gfor gtemperature gdetermination gmust gbe
grod- gded g25 gtimes. gTrue gor gFalse?: g

g g g g g g g g g g g gAns>>False



15.Sampling gby gthis gmethod gis grequired gwhen gtests gare gto gbe gmade gto
gdeter- gmine g with gspecification grequirements.:
g g g g g g g g g g g gAns>> gCompliance



16.This gmethod gcovers gsampling gfrom gfour gtypes gof gmixtures gwhich gare g ,
,g , gand g .: g
gggggggggggggggAns>> gStationary gmixers, gpaving gmixers, grevolving gdrum gmixers,

gand gopen gtop gmixers



17.The gmaximum gallowable gtime gbetween gobtaining gthe gfirst gand gfinal
2 g/
g22

,ACI CONCRETE FIELD TESTING TECHNICIAN- GRADE I EXAM
QUESTIONS WITH CORRECT ANSWERS


g portions gof ga gcomposite gsample gis minutes.:
g g g g g g g g g g g g g gAns>> g15




3 g/
g22