PCI Quality Control Technician Level 1 EXAM
comprehensive ques ons and verified accurate solu on
(detailed & elaborated) 2025 TEST!!
You will need early strength from a concrete mixture design in order to strip the product as soon
as possible. What type of cement should you consider and what characteris cs make it a good
choice? - CORRECT ANSWERS ASTM C150 Type III cement is used when early strength is
desired. It is ground finer than the other cements and will react with water faster.
Fine and coarse aggregates should generally conform to which standard? - CORRECT ANSWERS
Unless specifically stated otherwise, they should both conform to ASTM C33
How are fine and coarse aggregates defined by the standard and how does a plant check these
criteria - CORRECT ANSWERS Fine and coarse aggregates are generally defined by ASTM C33 in
rela onship to their grada on or par cle size, distribu on and fineness for sand. I plant reviews
material by tes ng for and compu ng the grada on.
Non-drinkable water should not be used to make concrete - ture or False? Explain - CORRECT
ANSWERS False - Water suitable for making concrete does not need to be fit for drinking, but
non-potable water must meet the chemical limits given in table C3.1.6 of PCI manuals MNL-116
and 117
As a general statement, what are admixtures? - CORRECT ANSWERS In a general sense, any
item added to concrete other than cement, aggregates, and water is an admixture
Chorides are detrimental to precast concrete because? - CORRECT ANSWERS B: Chlorides
promote corrosion of embedments, reinforcing, and prestressing strand.
Which of the following is not a benefit of using retarders as admixtures?
a. Reduc on of 28 day strength
comprehensive ques ons and verified accurate solu on
(detailed & elaborated) 2025 TEST!!
You will need early strength from a concrete mixture design in order to strip the product as soon
as possible. What type of cement should you consider and what characteris cs make it a good
choice? - CORRECT ANSWERS ASTM C150 Type III cement is used when early strength is
desired. It is ground finer than the other cements and will react with water faster.
Fine and coarse aggregates should generally conform to which standard? - CORRECT ANSWERS
Unless specifically stated otherwise, they should both conform to ASTM C33
How are fine and coarse aggregates defined by the standard and how does a plant check these
criteria - CORRECT ANSWERS Fine and coarse aggregates are generally defined by ASTM C33 in
rela onship to their grada on or par cle size, distribu on and fineness for sand. I plant reviews
material by tes ng for and compu ng the grada on.
Non-drinkable water should not be used to make concrete - ture or False? Explain - CORRECT
ANSWERS False - Water suitable for making concrete does not need to be fit for drinking, but
non-potable water must meet the chemical limits given in table C3.1.6 of PCI manuals MNL-116
and 117
As a general statement, what are admixtures? - CORRECT ANSWERS In a general sense, any
item added to concrete other than cement, aggregates, and water is an admixture
Chorides are detrimental to precast concrete because? - CORRECT ANSWERS B: Chlorides
promote corrosion of embedments, reinforcing, and prestressing strand.
Which of the following is not a benefit of using retarders as admixtures?
a. Reduc on of 28 day strength
