ACI FLATWORK EXAM 2 2026 CERTIFICATION
EVALUATION EXAMS COMPLETE QUESTIONS
AND ANSWERS
◉ hen finishers get behind because the concrete is setting faster
than expected and the placing crew is also shorthanded, one
solution is slowing the concrete delivery rate to match worker
output.
Answer: True
◉ In deciding how much concrete to order for a floor placement, you
should calculate the number of cubic yards needed to fill the forms,
then order two to three cubic yards less so you don't waste concrete
that is not needed.
Answer: False (Always get more)
◉ The question, "What finisher or finishers can request addition of
water to the concrete truck on site?" should be answered at the ______
_________.
Answer: This should be answered at the pre-construction meeting
◉ Concrete made with Portland cement will set and harden while
under water. True or False?
, Answer: True
◉ If a concrete slab on ground won't be exposed to sulfates, the
cement used is most likely to be:
Answer: Type I
◉ Most concrete used in slabs on ground have a coarse aggregate
size of what?
Answer: 3/4in. - 1 1/2in
◉ What Sand for concrete used in slabs on ground is easier to finish?
Answer: The No. 50 and No. 100 sieve.
◉ Increasing the amount of sand in concrete usually decreases the
amount of water needed to make the concrete workable.
Answer: False
◉ All concrete that will be subject to freezing when moist or be
exposed the deicing salts should contain:
Answer: an air-entrained agent
◉ Strength of normal weight concrete depends mainly on what?
Answer: Water Cement Ratio
EVALUATION EXAMS COMPLETE QUESTIONS
AND ANSWERS
◉ hen finishers get behind because the concrete is setting faster
than expected and the placing crew is also shorthanded, one
solution is slowing the concrete delivery rate to match worker
output.
Answer: True
◉ In deciding how much concrete to order for a floor placement, you
should calculate the number of cubic yards needed to fill the forms,
then order two to three cubic yards less so you don't waste concrete
that is not needed.
Answer: False (Always get more)
◉ The question, "What finisher or finishers can request addition of
water to the concrete truck on site?" should be answered at the ______
_________.
Answer: This should be answered at the pre-construction meeting
◉ Concrete made with Portland cement will set and harden while
under water. True or False?
, Answer: True
◉ If a concrete slab on ground won't be exposed to sulfates, the
cement used is most likely to be:
Answer: Type I
◉ Most concrete used in slabs on ground have a coarse aggregate
size of what?
Answer: 3/4in. - 1 1/2in
◉ What Sand for concrete used in slabs on ground is easier to finish?
Answer: The No. 50 and No. 100 sieve.
◉ Increasing the amount of sand in concrete usually decreases the
amount of water needed to make the concrete workable.
Answer: False
◉ All concrete that will be subject to freezing when moist or be
exposed the deicing salts should contain:
Answer: an air-entrained agent
◉ Strength of normal weight concrete depends mainly on what?
Answer: Water Cement Ratio
