ACI Concrete Field Testing Technician – Grade I – All Questions & 100% Correct Answers, Already Graded A+ – Latest Update (3 Versions)

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ACI Concrete Finisher Test (Difficult Questions) ALL QUESTIONS AND 100%
CORRECT ANSWERS ALREADY GRADED A+ - LATEST UPDATE 2026-2027




It is important that the ________ read and understand project specifications. -
CORRECT ANSWER Finisher Foreman


QUESTION : When concrete for a slab placement will be discharged from the
truck chute, truck arrivals should usually be spaced at about: - CORRECT
ANSWER 15 Min.


QUESTION : The question, "What finisher(s) can request the addition of water
to the concrete truck on site?" should be answered at the __________ -
CORRECT ANSWER Preconstruction meeting


QUESTION : Portland cement will set and harden under water, true or false? -
CORRECT ANSWER True


QUESTION : If a concrete slab on ground won't be exposed to sulfates, the
cement used is most likely to be: - CORRECT ANSWER Type 1


QUESTION : Most concrete used in slabs on ground has coarse aggregate with a
maximum size of: - CORRECT ANSWER 3/4" - 1-1/2."




UPDATED exam 2026

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QUESTION : Increasing the amount of sand in concrete usually decreases the
amount of water needed to make the concrete workable. True or False -
CORRECT ANSWER False


QUESTION : Granular subbases for slabs on ground can be compacted with
sheepsfoot rollers. True or False? - CORRECT ANSWER False


QUESTION : Before concreting, workers should check the elevation of the
subbase by: - CORRECT ANSWER Measuring down from a straightedge
spanning between the side forms.


QUESTION : when specifications don't require a concrete slab to be in direct
contact with the vapor retarder, the preferred method for reducing potential
problems caused by slab curing is: - CORRECT ANSWER Placing a 3"
thick layer of compactible manufactured sand (containing rock dust) on the
vapor retarder before concrete placement


QUESTION : The primary function of welded wire reinforcement in SOG that are
considered unreinforced is: - CORRECT ANSWER Keeping any slab
cracks tightly closed.


QUESTION : Instructions on drawings for SOG may require that: - CORRECT
ANSWER Reinforcing steel be discontinued (cut) so it doesn't pass through
the joint & every other bar or wire be discontinued (cut) so only half the steel
passes through the joint


QUESTION : Keyed construction joints are not recommended for slabs less than
____ thick. - CORRECT ANSWER 6"


UPDATED exam 2026