2025 ACI EXAM QUESTIONS WITH CORRECT ANSWERS

2025 ACI EXAM QUESTIONS WITH
CORRECT ANSWERS
TheAendAofAtheAtemperatureAmeasuringAdeviceAmustAbeAsubmergedAaAminimumAofA______?A-
ACORRECTAANSWERA-3"




WhatAisAtheArequiredAcapabilityArangeAonAtheAtemperatureAmeasuringAdevice?A-ACORRECTAANSWERA-
30AdegreesAFA-A120AdegreesAF



TheAtemperatureAmeasuringAdeviceAshallAbeAverifiedA__________,AorAwheneverAthereAisAaAquestionAofA__
_______.A-ACORRECTAANSWERA-annually,Aaccuracy



TheAtemperatureAofAconcreteAmayAbeAmeasuredAinAaAwheelbarrow.ATrueAorAFalse?A-ACORRECTAANSWERA-
TRUE



TheAtemperatureAofAconcreteAmayAbeAmeasuredAinAaAwallAform.ATrueAorAFalse?A-ACORRECTAANSWERA-
TRUE



AAcompositeAsampleAofAconcreteAisArequiredAevenAifAtheAonlyApurposeAforAobtainingAtheAsampleAisAtoAdete
rmineAtemperature.ATrueAorAFalse?A-ACORRECTAANSWERA-FALSE



WhatAmustAbeAdoneAtoAtheAsampleAcontainerApriorAtoAsamplingAconcrete?A-ACORRECTAANSWERA-
DampenAtheAsurfaceAwithAwater.



WhatAmustAbeAdoneAtoAtheAconcreteAsurroundingAtheAtemperatureAmeasuringAdeviceAafterAtheAdeviceAisAs
ubmergedAinAtheAfreshAconcrete?A-ACORRECTAANSWERA-
GentlyApushAtheAsurroundingAconcreteAbackAaroundAtheAtemperatureAmeasuringAdeviceAnearAtheAsurface.



HowAlongAmustAtheAtemperatureAmeasuringAdeviceAremainAinAtheAfreshlyAmixedAconcrete?A-
ACORRECTAANSWERA-2A-A5Aminutes.




AfterAtheAtemperatureAofAconcreteAisAread,AwhatAisAthenArequired.A-ACORRECTAANSWERA-
ReportAtheAtemperatureAofAtheAconcreteAtoAtheAnearestA1.0AdegreeAF.

,TheAtemperatureAofAtheAconcreteAisAreportedAtoAtheAnearestA________C.A_________F.A-
ACORRECTAANSWERA-0.5AdegreeAC,A1.0AdegreeAF




AccordingAtoAASTMAC1064AwhatAisAoneAreasonAtoAtakeAtheAtemperatureAofAconcrete?A-
ACORRECTAANSWERA-VerifyAconformanceAtoAaAspecifiedArequirement.




AAmaximumAtemperatureAofAfreshlyAmixedAconcreteAisAspecifiedAinATestAMethodAC1064.ATrueAorAFalse?A-
ACORRECTAANSWERA-FALSE




TheAsampleAofAconcreteAusedAforAtemperatureAdeterminationAmustAbeAroddedA25Atimes.ATrueAorAFalse?A-
ACORRECTAANSWERA-FALSE




WhatAisAtheAreasonAforApressingAconcreteAaroundAtheAtemperatureAmeasuringAdevice?A-
ACORRECTAANSWERA-

SoAthatAtheAambientAairAtemperatureAdoesAnotAinfluenceAtheAmeasuredAtemperature.



YouAshouldAremoveAtheAtemperatureAmeasuringAdeviceAbeforeAreportingAtheAreading.ATRUEAorAFALSE?A-
ACORRECTAANSWERA-FALSE




WhatAisAtheAASTMAforAmeasuringAtemperatureAonAfreshlyAsampledAconcrete?A-ACORRECTAANSWERA-
C1064



WhatAisAtheAASTMAforASamplingAFreshlyAMixedAConcreteA-ACORRECTAANSWERA-C172



WhatAisAtheAmaximumAelapsedAtimeAforAobtainingAaAcompositeA(twoAorAmoreApart)AsampleAofAconcrete?A-
ACORRECTAANSWERA-15AMinutes




WhatAshouldAbeAdoneAtoAtheAconcreteAsampleAafterAtransportingAitAtoAtheAtestingAsite?A-
ACORRECTAANSWERA-RemixAitAwithAaAshovelAtoAensureAuniformity.




WithinAhowAmanyAminutesAshouldAtestsAbeAstartedAforAslump,AairAcontent,AandAtemperatureAafterAobtaini
ngAaAconcreteAsample?A-ACORRECTAANSWERA-5Aminutes

, TestAcylindersAforAstrengthAshouldAbeAmoldedAwithinA___AminutesAofAtakingAaAconcreteAsample.A-
ACORRECTAANSWERA-15




TheAconcreteAsampleAmustAbeAprotectedAfromA_____,A_____,AsourcesAofArapidA_______________,AandAfr
omA______________________.A-ACORRECTAANSWERA-Sun,AWind,AEvaporation,AContamination.



WhatAisAtheAminimumAconcreteAsampleAsizeAtoAbeAtakenAforAtesting?A-ACORRECTAANSWERA-
28ALitersA/A1Aft3A(OneACubicAFt)



WhenAsamplingAfromAaAstationaryAmixer,AhowAmanyAportionsAshouldAbeAtaken?A-ACORRECTAANSWERA-
TwoAorAmore



WhenAsamplingAfromAaAstationaryAmixer,AfromAwhichAportionAofAtheAbatchAshouldAtheAsamplesAbeAtaken?A
-ACORRECTAANSWERA-TheAmiddleAportion.



WhenAsamplingAfromAaAstationaryAmixer,AwhichAtwoAcollectionAmethodsAareAacceptableAforAobtainingAaAs
ample?A-ACORRECTAANSWERA-1)ADivertingAtheAentireAflow

2)APassingAaAreceptacleAentirelyAthroughAtheAdischargeAstream



WhenAsamplingAfromAaAPavingAMixer,AhowAmanyAsamplesAareArequired?A-ACORRECTAANSWERA-
5AsamplesAminimumA(combinedAintoAoneAcompositeAsample)



WhenAsamplingAfromAaAPavingAMixer,AhowAshouldAtheAsample/sAbeAtaken?A-ACORRECTAANSWERA-
OnceAdischargeAisAcompleteAintoAaApile.



WhatAshouldAbeAavoidedAwhenAtakingAsamplesAfromAaAPavingAMixer?A-ACORRECTAANSWERA-
ContaminationAwithAtheASub-GradeA(ground)



WhenAsamplingAfromAaARevolvingADrumAMixerAorAAgitatorAaAminimumAofAhowAmanyAportionsAshouldAbeAt
aken?A-ACORRECTAANSWERA-TwoAorAmoreA(combinedAintoAoneAcompositeAsample)