ACIl Concretel Field-Testingl Technician-l
Gradel Il Examl Reviewl (Latestl 2025/l 2026l
Update)l Q/Al |l Gradel A|l 100%l Correctl
(Verifiedl Answers)
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 Thel compositel samplel forl al pavingl mixerl mustl representl al minimuml ofl _____l
differentl portionsl ofl thel batchl ofl concretel takenl froml thel pilel afterl discharge.
Answer:
5
Q:l Whenl samplingl froml al revolvingl druml truckl mixer,l concretel mustl bel sampledl atl
al minimuml ofl _____l regularlyl spacedl intervalsl duringl dischargel ofl thel middlel portionl
ofl thisl batch.
Answer:
2
Q:l Concretel samplesl froml al truckl mixerl mustl bel obtainedl beforel anyl waterl orl
admixturesl arel addedl tol thel mixerl atl thel jobl site.l Truel orl False?
Answer:
False
,Q:l Thel compositel samplesl 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:
Wetl sieved
Q:l Thel slumpl testl isl applicablel tol plasticl concretel withl al maximuml sizel aggregatel
ofl _____.
Answer:
1.5l in.
Q:l Whenl thel concretel containsl aggregatel largerl thanl allowedl forl thel slumpl test,l thel
largel aggregatel mustl bel _____.
Answer:
Removedl byl wetl sievingl thel samplel overl 1.5l in.l sieve
Q:l Thel moldl forl makingl thel slumpl testl isl inl thel shapel ofl _____.
Answer:
Thel frustuml ofl al cone
Q:l Thel heightl ofl thel slumpl moldl isl _____.
, Answer:
12l in.l [300l mm]
Q:l Thel interiorl surfacel ofl thel slumpl moldl isl allowedl tol havel minorl irregularities.l
Truel orl False?
Answer:
False
Q:l Forl usel inl thel slumpl test,l thel endl orl bothl endsl ofl thel tampingl rodl mustl bel
_____.
Answer:
Roundedl tol al hemisphericall tip
Q:l Thel samplel ofl concretel forl usel inl makingl thel slumpl testl mustl bel obainedl inl
accordancel withl ASTMl Standardl _____.
Answer:
C172,l Standardl Practicel forl Samplingl Freshlyl Mixedl Concrete
Q:l Thel slumpl moldl shouldl bel inl al dryl conditionl beforel beginningl thel test.l Truel orl
False?
Answer:
False
Q:l Thel surfacel onl whichl thel slumpl moldl willl bel placedl mustl bel _____.
Answer:
Flat,l level,l moist,l nonabsorbent,l andl freel ofl vibration
Gradel Il Examl Reviewl (Latestl 2025/l 2026l
Update)l Q/Al |l Gradel A|l 100%l Correctl
(Verifiedl Answers)
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 Thel compositel samplel forl al pavingl mixerl mustl representl al minimuml ofl _____l
differentl portionsl ofl thel batchl ofl concretel takenl froml thel pilel afterl discharge.
Answer:
5
Q:l Whenl samplingl froml al revolvingl druml truckl mixer,l concretel mustl bel sampledl atl
al minimuml ofl _____l regularlyl spacedl intervalsl duringl dischargel ofl thel middlel portionl
ofl thisl batch.
Answer:
2
Q:l Concretel samplesl froml al truckl mixerl mustl bel obtainedl beforel anyl waterl orl
admixturesl arel addedl tol thel mixerl atl thel jobl site.l Truel orl False?
Answer:
False
,Q:l Thel compositel samplesl 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:
Wetl sieved
Q:l Thel slumpl testl isl applicablel tol plasticl concretel withl al maximuml sizel aggregatel
ofl _____.
Answer:
1.5l in.
Q:l Whenl thel concretel containsl aggregatel largerl thanl allowedl forl thel slumpl test,l thel
largel aggregatel mustl bel _____.
Answer:
Removedl byl wetl sievingl thel samplel overl 1.5l in.l sieve
Q:l Thel moldl forl makingl thel slumpl testl isl inl thel shapel ofl _____.
Answer:
Thel frustuml ofl al cone
Q:l Thel heightl ofl thel slumpl moldl isl _____.
, Answer:
12l in.l [300l mm]
Q:l Thel interiorl surfacel ofl thel slumpl moldl isl allowedl tol havel minorl irregularities.l
Truel orl False?
Answer:
False
Q:l Forl usel inl thel slumpl test,l thel endl orl bothl endsl ofl thel tampingl rodl mustl bel
_____.
Answer:
Roundedl tol al hemisphericall tip
Q:l Thel samplel ofl concretel forl usel inl makingl thel slumpl testl mustl bel obainedl inl
accordancel withl ASTMl Standardl _____.
Answer:
C172,l Standardl Practicel forl Samplingl Freshlyl Mixedl Concrete
Q:l Thel slumpl moldl shouldl bel inl al dryl conditionl beforel beginningl thel test.l Truel orl
False?
Answer:
False
Q:l Thel surfacel onl whichl thel slumpl moldl willl bel placedl mustl bel _____.
Answer:
Flat,l level,l moist,l nonabsorbent,l andl freel ofl vibration
