ACIl Concretel Field-Testingl Technician-l
Gradel Il Examl Prepl (Latestl 2025/l 2026l
Update)l Q/Al |l Gradel A|l 100%l Correctl
(Verifiedl Answers)
Q:l Thel elapsedl timel betweenl obtainingl thel firstl andl finall portionsl ofl al compositel
samplel shalll notl exceedl __l min.
Answer:
15l min.
Q:l Portionsl ofl al compositel samplel shalll bel thoroughlyl mixedl beforel beginningl testl
onl thel sample.l T/F
Answer:
True
Q:l Startl testsl forl slump,l temp,l andl airl contentl withinl __l min.l afterl obtainingl thel
finall portionl ofl thel compositel sample.
Answer:
5l min.
Q:l startl moldingl specimensl frl strengthl testsl withinl __l afterl fabricationl thel compositel
sample.
Answer:
15l min.
,Q:l Thel concretel samplel mustl bel protectedl froml contaminationl andl __.
Answer:
Rapidl evaporation
Q:l Thel maximuml sizel samplel forl makingl strengthl testl specimensl isl __l ftl cubed
Answer:
1l footl cubed.
Q:l Whenl samplingl froml al STATIONARYl mixer,l thel batchl mustl bel sampledl atl __l orl
morel regularlyl spacedl intervalsl duringl dischargel ofl thel middlel portionl ofl thel batch.
Answer:
2
Q:l Whenl samplingl froml al PAVINGl mixer,l obtainl samplesl froml atl leastl __l differentl
portionsl ofl thel pilel andl combinel theml intol onel compositel samplel forl testl purposes
Answer:
5
Q:l Whenl samplingl froml al REVOLVINGl DRUMl TRUCKl mixer,l samplel thel concretel
byl collectingl __l orl morel portionsl takenl atl regularlyl spacedl intervalsl duringl dischargel
ofl thel middlel portionl ofl thel batch.
Answer:
2
Q:l Concretel samplesl froml al truckl mixerl willl bel obtainedl beforel anyl waterl orl
admixturesl arel addedl tol thel mixerl atl thel jobl site.l T/F
,Answer:
False
Q:l Thel compositel samplel froml al truckl mixerl mustl bel obtainedl froml thel __l portionl
ofl thel batch.
Answer:
Middle.
Q:l Whenl thel concretel containsl aggregatel largerl thanl thatl permittedl forl al particularl
testl method,l thel samplel ofl concretel mustl bel __l __l beforel makingl thel test.
Answer:
Wet-seived
Q:l Thel slumpl testl isl applicablel tol plasticl concretel withl al maximuml sizel aggregatel
ofl __.
Answer:
1.5l "
Q:l Thel moldl forl makingl thel slumpl isl inl thel shapel ofl __.
Answer:
Frustum
Q:l Thel heightl ofl thel slumpl moldl isl __.
Answer:
12"
, Q:l Thel interiorl surfacel ofl thel slumpl moldl isl allowedl tol havel minorl irregularities.l F/T
Answer:
False
Q:l Forl usel inl thel slumpl test,l thel endl orl bothl endsl ofl thel tampingl rodl mustl bel __.
Answer:
Rounded
Q:l Thel samplel ofl concretel forl usel inl makingl thel slumpl testl mustl bel obtainedl inl
accordancel withl ASTMl standardl __.
Answer:
C172l Sectionl 2
Q:l thel slumpl moldl shouldl bel inl al dryl conditionl beforel beginningl thel test.l T/F
Answer:
False-l itl shouldl bel dampened
Q:l Thel surfacel onl whichl thel slumpl mosdl willl bel placedl mustl bel __.
Answer:
Ridged,l Flatl andl Level.
Q:l Thel slumpl moldl isl filledl inl __l layers
Answer:
3
Gradel Il Examl Prepl (Latestl 2025/l 2026l
Update)l Q/Al |l Gradel A|l 100%l Correctl
(Verifiedl Answers)
Q:l Thel elapsedl timel betweenl obtainingl thel firstl andl finall portionsl ofl al compositel
samplel shalll notl exceedl __l min.
Answer:
15l min.
Q:l Portionsl ofl al compositel samplel shalll bel thoroughlyl mixedl beforel beginningl testl
onl thel sample.l T/F
Answer:
True
Q:l Startl testsl forl slump,l temp,l andl airl contentl withinl __l min.l afterl obtainingl thel
finall portionl ofl thel compositel sample.
Answer:
5l min.
Q:l startl moldingl specimensl frl strengthl testsl withinl __l afterl fabricationl thel compositel
sample.
Answer:
15l min.
,Q:l Thel concretel samplel mustl bel protectedl froml contaminationl andl __.
Answer:
Rapidl evaporation
Q:l Thel maximuml sizel samplel forl makingl strengthl testl specimensl isl __l ftl cubed
Answer:
1l footl cubed.
Q:l Whenl samplingl froml al STATIONARYl mixer,l thel batchl mustl bel sampledl atl __l orl
morel regularlyl spacedl intervalsl duringl dischargel ofl thel middlel portionl ofl thel batch.
Answer:
2
Q:l Whenl samplingl froml al PAVINGl mixer,l obtainl samplesl froml atl leastl __l differentl
portionsl ofl thel pilel andl combinel theml intol onel compositel samplel forl testl purposes
Answer:
5
Q:l Whenl samplingl froml al REVOLVINGl DRUMl TRUCKl mixer,l samplel thel concretel
byl collectingl __l orl morel portionsl takenl atl regularlyl spacedl intervalsl duringl dischargel
ofl thel middlel portionl ofl thel batch.
Answer:
2
Q:l Concretel samplesl froml al truckl mixerl willl bel obtainedl beforel anyl waterl orl
admixturesl arel addedl tol thel mixerl atl thel jobl site.l T/F
,Answer:
False
Q:l Thel compositel samplel froml al truckl mixerl mustl bel obtainedl froml thel __l portionl
ofl thel batch.
Answer:
Middle.
Q:l Whenl thel concretel containsl aggregatel largerl thanl thatl permittedl forl al particularl
testl method,l thel samplel ofl concretel mustl bel __l __l beforel makingl thel test.
Answer:
Wet-seived
Q:l Thel slumpl testl isl applicablel tol plasticl concretel withl al maximuml sizel aggregatel
ofl __.
Answer:
1.5l "
Q:l Thel moldl forl makingl thel slumpl isl inl thel shapel ofl __.
Answer:
Frustum
Q:l Thel heightl ofl thel slumpl moldl isl __.
Answer:
12"
, Q:l Thel interiorl surfacel ofl thel slumpl moldl isl allowedl tol havel minorl irregularities.l F/T
Answer:
False
Q:l Forl usel inl thel slumpl test,l thel endl orl bothl endsl ofl thel tampingl rodl mustl bel __.
Answer:
Rounded
Q:l Thel samplel ofl concretel forl usel inl makingl thel slumpl testl mustl bel obtainedl inl
accordancel withl ASTMl standardl __.
Answer:
C172l Sectionl 2
Q:l thel slumpl moldl shouldl bel inl al dryl conditionl beforel beginningl thel test.l T/F
Answer:
False-l itl shouldl bel dampened
Q:l Thel surfacel onl whichl thel slumpl mosdl willl bel placedl mustl bel __.
Answer:
Ridged,l Flatl andl Level.
Q:l Thel slumpl moldl isl filledl inl __l layers
Answer:
3
