ACIl Concretel Field-Testingl Technician-l
Gradel Il Examl (Latestl 2025/l 2026l
Update)l Q/Al |l Gradel A|l 100%l Correctl
(Verifiedl Answers)
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.l [37.5l mm]
,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 [37.5l mm]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
Q:l Thel slumpl moldl isl filledl inl _____l layers.
Answer:
3
Q:l Eachl layerl shouldl filll approximatelyl _____l thel volumel ofl thel mold.
Answer:
One-third
Q:l Thel approximatel concretel depthl (inl verticlel distance)l afterl placingl thel firstl layerl
isl _____,l andl thel secondl layerl isl _____.
Answer:
2l 5/8l in.l [70l mm],l 6l 1/8l in.l [160l mm]
Gradel Il Examl (Latestl 2025/l 2026l
Update)l Q/Al |l Gradel A|l 100%l Correctl
(Verifiedl Answers)
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.l [37.5l mm]
,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 [37.5l mm]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
Q:l Thel slumpl moldl isl filledl inl _____l layers.
Answer:
3
Q:l Eachl layerl shouldl filll approximatelyl _____l thel volumel ofl thel mold.
Answer:
One-third
Q:l Thel approximatel concretel depthl (inl verticlel distance)l afterl placingl thel firstl layerl
isl _____,l andl thel secondl layerl isl _____.
Answer:
2l 5/8l in.l [70l mm],l 6l 1/8l in.l [160l mm]
