EXAM 2026 CHAPTERS 1-10 VERIFIED
QUESTIONS AND ANSWERS
⩥ Delays in discharging concrete trucks can result in the concrete being
hard to:. Answer: Pump, place, and finish
⩥ When there is room for two concrete trucks ready to discharge into a
pump hopper, placement is faster because:. Answer: as one truck is
finishing, the other is ready to unload concrete
⩥ You can tell when water was added to the truck by looking at the:.
Answer: Batch Ticket
⩥ When concrete for a slab placement will be discharged from the truck
chute, truck arrivals should usually be spaced about:. Answer: 15 mins
⩥ When 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. T/F. Answer:
True
⩥ In deciding how much concrete to order for a floor placement, you
should calculate the number of cubic yards (cubic meters) needed to fill
,the forms, then order two to three cubic yards (cubic meters) less so you
don't waste concrete that is not needed. T/F. Answer: False
⩥ Concrete made with portland cement will set and harden while under
water? T/F. Answer: False
⩥ 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 has course aggregate with a
maximum size of:. Answer: 3/4 to 1 1/2in
⩥ Sand for concrete used in slabs on ground is easier to finish when it
has close to the largest allowable amount of material passing the No. 50
and No. 100 sieves. T/F. Answer: True
⩥ Increasing the amount of sand in a concrete usually decreases the
amount of water needed to make the concrete workable. T/F. Answer:
False
⩥ All concrete that will be subject to freezing when moist or be exposed
to deicing salts should contain:. Answer: An air-entraining agent
⩥ Strength of normal weight concrete depends mainly on:. Answer:
water-cement ratio
, ⩥ Over sanded concrete mixtures are likely to produce floors with poor
wear resistance and excessive shrinkage. T/F. Answer: True
⩥ To minimize shrinkage and reduce cracking and curling:. Answer:
Much course aggregate
Little mixing water
Aggregate low shrinkage
(All of the above)
⩥ Air-entrained concrete is not recommended for use in concrete slabs:.
Answer: Finished by reparation steel troweling passes
⩥ Changes in concrete temperature affect:. Answer: Setting time
Air content
Slump
( All of the above)
⩥ To determine if concrete, in place, has the strength needed to put into
service, test cylinders should be:. Answer: Kept at the job site and cured
under conditions similar to the curing conditions for the concrete they
represent