ACI CERTIFICATION- CONCRETE FIELD
TESTING TECHNICIAN GRADE 1 CP-1 (12)
QUESTIONS AND CORRECT VERIFIED
ANSWERS
ASTMA2C1064A2-A2Ans--
A2StandardA2TestA2MethodA2ForA2TemperatureA2ofA2FreshlyA2MixedA2Hydraulic-
CementA2Concrete
TheA2sensorA2ofA2theA2temperatureA2measuringA2deviceA2shallA2beA2submergedA2aA2mini
mumA2ofA2______A2inchesA2intoA2theA2freshlyA2mixedA2concrete.A2-A2Ans--A23"
TheA2temperatureA2measuringA2deviceA2shallA2haveA2aA2capacityA2ofA2measuringA2temper
atureA2ofA2freshlyA2mixedA2concreteA2toA2±A2______A2°FA2throughoutA2aA2rangeA2ofA2____
________.A2-A2Ans--A21A2degree,A230A2degreesA2toA2120A2degrees
TheA2temperatureA2measuringA2deviceA2shallA2beA2calibratedA2______A2,A2orA2wheneverA2
thereA2isA2aA2questionA2ofA2______A2.A2-A2Ans--A2Annually,A2accuracy
TheA2temperatureA2ofA2concreteA2mayA2beA2measuredA2inA2aA2wheelbarrow.A2TrueA2orA2F
alse?A2-A2Ans--A2True
TheA2temperatureA2ofA2concreteA2mayA2beA2measuredA2inA2aA2wallA2form.A2TrueA2orA2Fals
e?A2-A2Ans--A2True
WhatA2mustA2beA2doneA2toA2theA2sampleA2containerA2priorA2toA2samplingA2theA2concrete?
A2-A2Ans--A2DampenA2withA2water
WhatA2mustA2beA2doneA2toA2theA2concreteA2surroundingA2theA2temperatureA2measuringA2
deviceA2afterA2theA2deviceA2isA2submergedA2inA2theA2freshA2concrete?A2-A2Ans--
A2CloseA2offA2airA2voidsA2byA2gentlyA2pressingA2theA2concreteA2aroundA2theA2device
HowA2longA2mustA2theA2temperatureA2measuringA2deviceA2remainA2inA2theA2freshlyA2mixe
dA2concrete?A2-A2Ans--A2minimumA2ofA2twoA2minutes,A2maximumA2ofA2fiveA2minutes
TheA2temperatureA2ofA2theA2concreteA2isA2reportedA2toA2theA2nearestA2______A2°FA2-
A2Ans--A21A2degree
AA2maximumA2temperatureA2ofA2freshlyA2mixedA2concreteA2isA2specifiedA2inA2ASTMA2C10
64.A2TrueA2orA2False?A2-A2Ans--A2False
ASTMA2C172A2-A2Ans--A2StandardA2PracticeA2forA2SamplingA2FreshlyA2MixedA2Concrete
, SamplingA2byA2thisA2methodA2isA2requiredA2whenA2testsA2areA2toA2beA2madeA2toA2determin
eA2_____A2withA2specificationA2requirements.A2-A2Ans--A2Compliance
ThisA2methodA2coversA2samplingA2fromA2fourA2typesA2ofA2mixers,A2whichA2areA2_____A2,A2
_____A2,A2_____A2,A2andA2_____A2.A2-A2Ans--
A2StationaryA2mixers,A2pavingA2mixers,A2revolvingA2drumA2mixersA2andA2openA2topA2mixer
s
TheA2maximumA2allowableA2timeA2betweenA2obtainingA2theA2firstA2andA2finalA2portionsA2of
A2aA2compositeA2sampleA2isA2_____A2minutes.A2-A2Ans--A215
PortionsA2ofA2aA2compositeA2sampleA2shallA2beA2thoroughlyA2remixedA2beforeA2beginningA
2testsA2onA2theA2sample.A2TrueA2orA2False?A2-A2Ans--A2True
TheA2maximumA2elapsedA2timeA2allowedA2betweenA2obtainingA2theA2finalA2portionA2ofA2th
eA2compositeA2sampleA2andA2beginningA2theA2testsA2forA2slump,A2temperature,A2andA2airA2
contentA2isA2_____A2minutes.A2-A2Ans--A25
TheA2moldingA2ofA2strengthA2testA2specimensA2shallA2beginA2withinA2_____A2minutesA2afte
rA2fabricatingA2theA2composite
sample.A2-A2Ans--A215
TheA2concreteA2sampleA2mustA2beA2protectedA2fromA2contaminationA2andA2_____.A2-
A2Ans--A2RapidA2evaporation
TheA2minimumA2sizeA2sampleA2forA2makingA2strengthA2testA2specimensA2isA2_____.A2-
A2Ans--A21A2cubicA2foot
WhenA2samplingA2fromA2aA2stationaryA2mixer,A2theA2batchA2mustA2beA2sampledA2atA2____
_A2orA2moreA2regularlyA2spacedA2intervalsA2duringA2dischargeA2ofA2theA2middleA2portionA2o
fA2theA2batch.A2-A2Ans--A22
TheA2compositeA2sampleA2forA2aA2pavingA2mixerA2mustA2representA2aA2minimumA2ofA2___
__A2differentA2portionsA2ofA2theA2batchA2ofA2concreteA2takenA2fromA2theA2pileA2afterA2disch
arge.A2-A2Ans--A25
WhenA2samplingA2fromA2aA2revolvingA2drumA2truckA2mixer,A2concreteA2mustA2beA2sample
dA2atA2aA2minimumA2ofA2_____A2regularlyA2spacedA2intervalsA2duringA2dischargeA2ofA2theA
2middleA2portionA2ofA2theA2batch.A2-A2Ans--A22
ConcreteA2samplesA2fromA2aA2truckA2mixerA2mustA2beA2obtainedA2beforeA2anyA2waterA2orA
2admixturesA2areA2addedA2toA2theA2mixerA2atA2theA2jobA2site.A2TrueA2orA2False?A2-A2Ans--
A2False
TheA2compositeA2sampleA2fromA2aA2truckA2mixerA2mustA2beA2obtainedA2fromA2theA2_____A
2portionA2ofA2theA2batch.A2-A2Ans--A2middle
TESTING TECHNICIAN GRADE 1 CP-1 (12)
QUESTIONS AND CORRECT VERIFIED
ANSWERS
ASTMA2C1064A2-A2Ans--
A2StandardA2TestA2MethodA2ForA2TemperatureA2ofA2FreshlyA2MixedA2Hydraulic-
CementA2Concrete
TheA2sensorA2ofA2theA2temperatureA2measuringA2deviceA2shallA2beA2submergedA2aA2mini
mumA2ofA2______A2inchesA2intoA2theA2freshlyA2mixedA2concrete.A2-A2Ans--A23"
TheA2temperatureA2measuringA2deviceA2shallA2haveA2aA2capacityA2ofA2measuringA2temper
atureA2ofA2freshlyA2mixedA2concreteA2toA2±A2______A2°FA2throughoutA2aA2rangeA2ofA2____
________.A2-A2Ans--A21A2degree,A230A2degreesA2toA2120A2degrees
TheA2temperatureA2measuringA2deviceA2shallA2beA2calibratedA2______A2,A2orA2wheneverA2
thereA2isA2aA2questionA2ofA2______A2.A2-A2Ans--A2Annually,A2accuracy
TheA2temperatureA2ofA2concreteA2mayA2beA2measuredA2inA2aA2wheelbarrow.A2TrueA2orA2F
alse?A2-A2Ans--A2True
TheA2temperatureA2ofA2concreteA2mayA2beA2measuredA2inA2aA2wallA2form.A2TrueA2orA2Fals
e?A2-A2Ans--A2True
WhatA2mustA2beA2doneA2toA2theA2sampleA2containerA2priorA2toA2samplingA2theA2concrete?
A2-A2Ans--A2DampenA2withA2water
WhatA2mustA2beA2doneA2toA2theA2concreteA2surroundingA2theA2temperatureA2measuringA2
deviceA2afterA2theA2deviceA2isA2submergedA2inA2theA2freshA2concrete?A2-A2Ans--
A2CloseA2offA2airA2voidsA2byA2gentlyA2pressingA2theA2concreteA2aroundA2theA2device
HowA2longA2mustA2theA2temperatureA2measuringA2deviceA2remainA2inA2theA2freshlyA2mixe
dA2concrete?A2-A2Ans--A2minimumA2ofA2twoA2minutes,A2maximumA2ofA2fiveA2minutes
TheA2temperatureA2ofA2theA2concreteA2isA2reportedA2toA2theA2nearestA2______A2°FA2-
A2Ans--A21A2degree
AA2maximumA2temperatureA2ofA2freshlyA2mixedA2concreteA2isA2specifiedA2inA2ASTMA2C10
64.A2TrueA2orA2False?A2-A2Ans--A2False
ASTMA2C172A2-A2Ans--A2StandardA2PracticeA2forA2SamplingA2FreshlyA2MixedA2Concrete
, SamplingA2byA2thisA2methodA2isA2requiredA2whenA2testsA2areA2toA2beA2madeA2toA2determin
eA2_____A2withA2specificationA2requirements.A2-A2Ans--A2Compliance
ThisA2methodA2coversA2samplingA2fromA2fourA2typesA2ofA2mixers,A2whichA2areA2_____A2,A2
_____A2,A2_____A2,A2andA2_____A2.A2-A2Ans--
A2StationaryA2mixers,A2pavingA2mixers,A2revolvingA2drumA2mixersA2andA2openA2topA2mixer
s
TheA2maximumA2allowableA2timeA2betweenA2obtainingA2theA2firstA2andA2finalA2portionsA2of
A2aA2compositeA2sampleA2isA2_____A2minutes.A2-A2Ans--A215
PortionsA2ofA2aA2compositeA2sampleA2shallA2beA2thoroughlyA2remixedA2beforeA2beginningA
2testsA2onA2theA2sample.A2TrueA2orA2False?A2-A2Ans--A2True
TheA2maximumA2elapsedA2timeA2allowedA2betweenA2obtainingA2theA2finalA2portionA2ofA2th
eA2compositeA2sampleA2andA2beginningA2theA2testsA2forA2slump,A2temperature,A2andA2airA2
contentA2isA2_____A2minutes.A2-A2Ans--A25
TheA2moldingA2ofA2strengthA2testA2specimensA2shallA2beginA2withinA2_____A2minutesA2afte
rA2fabricatingA2theA2composite
sample.A2-A2Ans--A215
TheA2concreteA2sampleA2mustA2beA2protectedA2fromA2contaminationA2andA2_____.A2-
A2Ans--A2RapidA2evaporation
TheA2minimumA2sizeA2sampleA2forA2makingA2strengthA2testA2specimensA2isA2_____.A2-
A2Ans--A21A2cubicA2foot
WhenA2samplingA2fromA2aA2stationaryA2mixer,A2theA2batchA2mustA2beA2sampledA2atA2____
_A2orA2moreA2regularlyA2spacedA2intervalsA2duringA2dischargeA2ofA2theA2middleA2portionA2o
fA2theA2batch.A2-A2Ans--A22
TheA2compositeA2sampleA2forA2aA2pavingA2mixerA2mustA2representA2aA2minimumA2ofA2___
__A2differentA2portionsA2ofA2theA2batchA2ofA2concreteA2takenA2fromA2theA2pileA2afterA2disch
arge.A2-A2Ans--A25
WhenA2samplingA2fromA2aA2revolvingA2drumA2truckA2mixer,A2concreteA2mustA2beA2sample
dA2atA2aA2minimumA2ofA2_____A2regularlyA2spacedA2intervalsA2duringA2dischargeA2ofA2theA
2middleA2portionA2ofA2theA2batch.A2-A2Ans--A22
ConcreteA2samplesA2fromA2aA2truckA2mixerA2mustA2beA2obtainedA2beforeA2anyA2waterA2orA
2admixturesA2areA2addedA2toA2theA2mixerA2atA2theA2jobA2site.A2TrueA2orA2False?A2-A2Ans--
A2False
TheA2compositeA2sampleA2fromA2aA2truckA2mixerA2mustA2beA2obtainedA2fromA2theA2_____A
2portionA2ofA2theA2batch.A2-A2Ans--A2middle