ACI CONCRETE FIELDTESTING TECHNICIAN-
GRADE I QUESTIONS WITH CORRECT
ANSWERS 2025
TheAsensorAofAtheAtemperatureAmeasuringAdeviceAshallAbeAsubmergedAaAminimumAofA_____Ain.A[_____m
m]AintoAtheAfreshlyAmixedAconcrete.A-ACORRECTAANSWERA-3Ain.A[75Amm]
TheAtemperatureAmeasuringAdeviceAshallAhaveAaAcapacityAofAmeasuringAtemperatureAofAfreshlyAmixedAcon
creteAtoA+-A_____AdegreesAFA[+-A_____AC]AthroughoutAaArangeAofA_____.A-ACORRECTAANSWERA-
1AdegreeAFA[0.5AC],A30AdegreesAFAtoA120AFA[0ACAtoA50AC]
TheAtemperatureAmeasuringAdeviceAshallAbeAcalibratedA_____,AorAwheneverAthereAisAaAquestionAofA_____.
A-ACORRECTAANSWERA-Annually,Aaccuracy
TheAtemperatureAofAconcreteAmayAbeAmeasuredAinAaAwheelbarrow.ATrueAorAFalse?A-ACORRECTAANSWERA-
True
TheAtemperatureAofAconcreteAmayAbeAmeasuredAinAaAwallAform.ATrueAofAFalseA-ACORRECTAANSWERA-True
AAcompositeAsampleAofAconcreteAisArequiredAevenAifAtheAonlyApurposeAforAobtainingAtheAsampleAisAtoAdete
rmineAtemperature.ATrueAofAFalse?A-ACORRECTAANSWERA-False
WhatAmustAbeAdoneAtoAtheAsampleAcontainerApriorAtoAsamplingAtheAconcrete?A-ACORRECTAANSWERA-
DampenA(withAwater)
WhatAmustAbeAdoneAtoAtheAconcreteAsurroundingAtheAtemperatureAmeasuringAdeviceAafterAtheAdeviceAisAs
ubmergedAinAtheAfreshAconcrete.A-ACORRECTAANSWERA-
GentlyApressAtheAconcreteAaroundAtheAtemperatureAmeasuringAdeviceAatAtheAsurfaceAofAtheAconcrete
HowAlongAmustAtheAtemperatureAmeasuringAdeviceAremainAinAtheAfreshlyAmixedAconcrete?A-
ACORRECTAANSWERA-AtAleastA2AminutesAbutAnotAmoreAthanA5Aminutes
AfterAtheAtemperatureAofAtheAconcreteAisAread,AwhatAisArequired?A-ACORRECTAANSWERA-
ReportingAofAtemperature
, TheAtemperatureAofAconcreteAisAreportedAtoAtheAnearestA_____AdegreesAFA[_____AC]A-
ACORRECTAANSWERA-1AdegreeAFA[0.5AC]
AccordingAtoAASTMAC1064,AwhatAisAoneAreasonAtoAtakeAtheAtemperatureAofAconcrete?A-
ACORRECTAANSWERA-VerifyAconformanceAtoAaAspecifiedArequirementAforAtemperatureAofAconcrete
AAmaximumAtemperatureAofAfreshlyAmixedAconcreteAisAspecifiedAinAASTMAC1064.ATrueAofAFalse?A-
ACORRECTAANSWERA-False
TheAsampleAofAconcreteAusedAforAtemperatureAdeterminationAmustAbeAroddedA25Atimes.ATrueAorAFalse?A-
ACORRECTAANSWERA-False
SamplingAbyAthisAmethodAisArequiredAwhenAtestsAareAtoAbeAmadeAtoAdetermineA_____AwithAspecificationAr
equirements.A-ACORRECTAANSWERA-Compliance
ThisAmethodAcoversAsamplingAfromAfourAtypesAofAmixturesAwhichAareA_____,A_____,A_____,AandA_____.A-
ACORRECTAANSWERA-StationaryAmixers,ApavingAmixers,ArevolvingAdrumAmixers,AandAopenAtopAmixers
TheAmaximumAallowableAtimeAbetweenAobtainingAtheAfirstAandAfinalAportionsAofAaAcompositeAsampleAisA_
____Aminutes.A-ACORRECTAANSWERA-15
PortionsAofAaAcompositeAsampleAshallAbeAthoroughlyAremixedAbforeAbeginningAtestsAonAtheAsample.ATrueA
ofAFalse?A-ACORRECTAANSWERA-True
TheAmaximumAelapsedAtimeAallowedAbetweenAobtainingAtheAfinalAportionAofAtheAcompositeAsampleAandA
beginningAtheAtestsAforAslump,Atemperature,AandAairAcontentAisA_____Aminutes.A-ACORRECTAANSWERA-5
TheAmoldingAofAstrengthAtestAspecimensAshallAbeginAwithinA_____AminutesAafterAfabricatingAtheAcomposit
eAsample.A-ACORRECTAANSWERA-15
TheAconcreteAsampleAmustAbeAprotectedAfromAcontaminationAandA_____.A-ACORRECTAANSWERA-
RapidAevaporation
GRADE I QUESTIONS WITH CORRECT
ANSWERS 2025
TheAsensorAofAtheAtemperatureAmeasuringAdeviceAshallAbeAsubmergedAaAminimumAofA_____Ain.A[_____m
m]AintoAtheAfreshlyAmixedAconcrete.A-ACORRECTAANSWERA-3Ain.A[75Amm]
TheAtemperatureAmeasuringAdeviceAshallAhaveAaAcapacityAofAmeasuringAtemperatureAofAfreshlyAmixedAcon
creteAtoA+-A_____AdegreesAFA[+-A_____AC]AthroughoutAaArangeAofA_____.A-ACORRECTAANSWERA-
1AdegreeAFA[0.5AC],A30AdegreesAFAtoA120AFA[0ACAtoA50AC]
TheAtemperatureAmeasuringAdeviceAshallAbeAcalibratedA_____,AorAwheneverAthereAisAaAquestionAofA_____.
A-ACORRECTAANSWERA-Annually,Aaccuracy
TheAtemperatureAofAconcreteAmayAbeAmeasuredAinAaAwheelbarrow.ATrueAorAFalse?A-ACORRECTAANSWERA-
True
TheAtemperatureAofAconcreteAmayAbeAmeasuredAinAaAwallAform.ATrueAofAFalseA-ACORRECTAANSWERA-True
AAcompositeAsampleAofAconcreteAisArequiredAevenAifAtheAonlyApurposeAforAobtainingAtheAsampleAisAtoAdete
rmineAtemperature.ATrueAofAFalse?A-ACORRECTAANSWERA-False
WhatAmustAbeAdoneAtoAtheAsampleAcontainerApriorAtoAsamplingAtheAconcrete?A-ACORRECTAANSWERA-
DampenA(withAwater)
WhatAmustAbeAdoneAtoAtheAconcreteAsurroundingAtheAtemperatureAmeasuringAdeviceAafterAtheAdeviceAisAs
ubmergedAinAtheAfreshAconcrete.A-ACORRECTAANSWERA-
GentlyApressAtheAconcreteAaroundAtheAtemperatureAmeasuringAdeviceAatAtheAsurfaceAofAtheAconcrete
HowAlongAmustAtheAtemperatureAmeasuringAdeviceAremainAinAtheAfreshlyAmixedAconcrete?A-
ACORRECTAANSWERA-AtAleastA2AminutesAbutAnotAmoreAthanA5Aminutes
AfterAtheAtemperatureAofAtheAconcreteAisAread,AwhatAisArequired?A-ACORRECTAANSWERA-
ReportingAofAtemperature
, TheAtemperatureAofAconcreteAisAreportedAtoAtheAnearestA_____AdegreesAFA[_____AC]A-
ACORRECTAANSWERA-1AdegreeAFA[0.5AC]
AccordingAtoAASTMAC1064,AwhatAisAoneAreasonAtoAtakeAtheAtemperatureAofAconcrete?A-
ACORRECTAANSWERA-VerifyAconformanceAtoAaAspecifiedArequirementAforAtemperatureAofAconcrete
AAmaximumAtemperatureAofAfreshlyAmixedAconcreteAisAspecifiedAinAASTMAC1064.ATrueAofAFalse?A-
ACORRECTAANSWERA-False
TheAsampleAofAconcreteAusedAforAtemperatureAdeterminationAmustAbeAroddedA25Atimes.ATrueAorAFalse?A-
ACORRECTAANSWERA-False
SamplingAbyAthisAmethodAisArequiredAwhenAtestsAareAtoAbeAmadeAtoAdetermineA_____AwithAspecificationAr
equirements.A-ACORRECTAANSWERA-Compliance
ThisAmethodAcoversAsamplingAfromAfourAtypesAofAmixturesAwhichAareA_____,A_____,A_____,AandA_____.A-
ACORRECTAANSWERA-StationaryAmixers,ApavingAmixers,ArevolvingAdrumAmixers,AandAopenAtopAmixers
TheAmaximumAallowableAtimeAbetweenAobtainingAtheAfirstAandAfinalAportionsAofAaAcompositeAsampleAisA_
____Aminutes.A-ACORRECTAANSWERA-15
PortionsAofAaAcompositeAsampleAshallAbeAthoroughlyAremixedAbforeAbeginningAtestsAonAtheAsample.ATrueA
ofAFalse?A-ACORRECTAANSWERA-True
TheAmaximumAelapsedAtimeAallowedAbetweenAobtainingAtheAfinalAportionAofAtheAcompositeAsampleAandA
beginningAtheAtestsAforAslump,Atemperature,AandAairAcontentAisA_____Aminutes.A-ACORRECTAANSWERA-5
TheAmoldingAofAstrengthAtestAspecimensAshallAbeginAwithinA_____AminutesAafterAfabricatingAtheAcomposit
eAsample.A-ACORRECTAANSWERA-15
TheAconcreteAsampleAmustAbeAprotectedAfromAcontaminationAandA_____.A-ACORRECTAANSWERA-
RapidAevaporation
