ACI GRADE 1 FIELD TESTING CERTIFICATION PRACTICE TEST – IRVING QUESTIONS AND CORRECT VERIFIED ANSWERS

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ACI GRADE 1 FIELD TESTING CERTIFICATION PRACTICE TEST – IRVING QUESTIONS AND CORRECT VERIFIED ANSWERS

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2025/2026

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ACI GRADE 1 FIELD TESTING CERTIFICATION PRACTICE TEST – IRVING QUESTIONS AND CORRECT VERIFIED ANSWERS

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ACI GRADE 1 FIELD TESTING
CERTIFICATION PRACTICE TEST –
IRVING QUESTIONS AND CORRECT
VERIFIED ANSWERS
ForA2concreteA2withA2aggregatesA2lessA2thanA23A2inches,A2theA2thermometerA2mustA2rema
inA2inA2theA2freshA2concreteA2sampleA2aA2minimumA2ofA25A2minutesA2orA2untilA2theA2temper
atureA2readingA2stabilizes.A2(TA2orA2F)A2-A2Ans--A2FalseA2(2-5A2minutes)

TheA2temperatureA2measuringA2deviceA2mustA2beA2accurateA2toA2withinA20.1A2degree.A2(T
A2orA2F)A2-A2Ans--A2

TheA2temperatureA2measuringA2deviceA2shallA2haveA2aA2capacityA2ofA2measuringA2temper
atureA2ofA2freshlyA2mixedA2concreteA2throughoutA2aA2rangeA2ofA2_____A2toA2_____A2degre
eA2FA2(A2______A2toA2______A2degreeA2C)A2-A2Ans--
A230A2toA2120A2degreeA2FA2(A20A2toA250A2degreeA2C)

AA2compositeA2sampleA2isA2notA2neededA2ifA2onlyA2theA2temperatureA2testA2isA2beingA2run.
A2(TA2orA2F)A2-A2Ans--A2True

TheA2temperatureA2ofA2freshA2concreteA2inA2aA2placementA2mustA2beA2measuredA2byA2ins
ertingA2aA2thermometerA2intoA2theA2topA2sixA2inchesA2ofA2concrete.A2(TA2orA2F)A2-A2Ans--
A2FalseA2(3A2in.)

TheA2temperatureA2ofA2theA2concreteA2isA2recordedA2toA2theA2nearestA2______A2degreeA2
FA2(______A2degreeA2C)A2-A2Ans--A21A2degreeA2FA2(0.5A2degreeA2C)

ASTMA2C1064A2statesA2theA2containerA2usedA2toA2measureA2temperatureA2ofA2concreteA2
mustA2beA2largeA2enoughA2toA2provideA2atA2leastA25A2inchesA2ofA2concreteA2aroundA2theA2
sensor.A2(TA2orA2F)A2-A2Ans--A2

CalibrateA2theA2temperatureA2measuringA2deviceA2atA2leastA2__________,A2orA2whenever
A2thereA2isA2aA2questionA2ofA2accuracy.A2-A2Ans--A2Annually

AfterA2theA2thermometerA2isA2placedA2inA2theA2concrete:A2-A2Ans--
A2GentlyA2pressA2concreteA2aroundA2theA2thermometer

AccordingA2toA2ASTMA2C1064,A2whatA2isA2oneA2reasonA2toA2takeA2theA2temperatureA2ofA2c
oncrete?A2-A2Ans--A2VerifyA2conformance

ItA2isA2allowableA2toA2removeA2theA2temperatureA2measuringA2devicesA2fromA2theA2freshly
A2mixedA2concreteA2toA2readA2theA2temperatureA2ifA2youA2cannotA2seeA2theA2reading.A2(TA2
orA2F)A2-A2Ans--A2False

, TheA2maximumA2allowableA2timeA2betweenA2obtainingA2theA2firstA2andA2lastA2portionsA2ofA
2theA2compositeA2sampleA2mayA2notA2exceedA25A2minutes.A2(TA2orA2F)A2-A2Ans--A2False

StartA2moldingA2specimensA2forA2strengthA2testsA2withinA230A2minutesA2afterA2fabricatingA2
theA2compositeA2sample.A2(TA2orA2F)A2-A2Ans--A2FalseA2(15A2mins)

TheA2compositeA2concreteA2sampleA2mustA2beA2protectedA2fromA2sun,A2wind,A2contamina
tionA2andA2rapidA2evaporation.A2(TA2orA2F)A2-A2Ans--
A2FalseA2(ContaminationA2andA2rapidA2evaporation)

IfA2theA2concreteA2containsA2aggregatesA2largerA2thanA2thoseA2thatA2areA2appropriateA2for
A2aA2sizeA2ofA2moldA2orA2equipmentA2used,A2theA2sampleA2shouldA2beA2wet-
sievedA2beforeA2makingA2theA2test.A2(TA2orA2F)A2-A2Ans--A2FalseA2(wetA2screened)

TheA2compositeA2sampleA2notA2beA2remixedA2beforeA2beginningA2anyA2tests.A2(TA2orA2F)A2
-A2Ans--A2False

SamplingA2shouldA2normallyA2beA2performed,A2asA2theA2concreteA2isA2dischargedA2fromA2t
heA2mixer.A2(TA2orA2F)A2-A2Ans--A2True

ASTMA2MethodA2C172A2includesA2theA2samplingA2fromA2stationaryA2mixers,A2pavingA2mix
ers,A2truckA2mixers,A2agitators,A2andA2non-agitatingA2equipment.A2(TA2orA2F)A2-A2Ans--
A2True

AfterA2samplingA2isA2completed,A2startA2theA2testsA2forA2slumpA2andA2airA2contentA2within:A
2-A2Ans--A2NoneA2ofA2theA2aboveA2(5A2mins)

InA2anyA2case,A2doA2notA2obtainA2samplesA2until:A2-A2Ans--
A2AllA2theA2waterA2andA2admixturesA2haveA2beenA2addedA2toA2theA2concrete

NoA2samplesA2shallA2beA2takenA2beforeA2______A2orA2afterA2______A2ofA2theA2batchA2hasA
2beenA2discharged.A2-A2Ans--A2

WhenA2strengthA2testsA2areA2toA2beA2made,A2theA2minimumA2sizeA2ofA2theA2compositeA2sa
mpleA2shallA2be:A2-A2Ans--A21A2cubicA2foot

SampleA2theA2concreteA2fromA2theA2chuteA2ofA2aA2truckA2mixerA2by:A2-A2Ans--A2

FreshA2concreteA2toA2beA2testedA2atA2theA2jobA2siteA2shouldA2beA2sampledA2from:A2-A2Ans--
A2TwoA2orA2moreA2regularlyA2spacedA2intervalsA2duringA2dischargeA2ofA2theA2middleA2porti
onA2ofA2theA2batch

TheA2elapsedA2timeA2betweenA2obtainingA2theA2firstA2andA2finalA2portionsA2ofA2theA2compo
siteA2sample,A2accordingA2toA2ASTMA2C172,A2shallA2notA2exceed:A2-A2Ans--
A2NoneA2ofA2theA2above

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Uploaded on: July 16, 2026
Number of pages: 8
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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