ACI CONCRETE FIELD TESTING TECHNICIAN GRADE 1 LATEST EXAM
2025 WITH 230 PREP QUESTIONS AND CORRECT ANSWERS/ ACI
FIELD TESTING GRADE 1 EXAM 2025/ CONCRETE FIELD TESTING
GRADE 1 TEST
The standard practice describes the _____ _____ and _____ required
to obtain a representative sample of fresh concrete and to assess its
tractability to the structure it represents. - ANSWER-procedures,
location and sample size
The procedures used in sampling shall include the use of every
precaution that will assist in obtaining samples that are truly
representative of the _____and _______ of the concrete. - ANSWER-
nature and conditions
Intermittent scooping of the sample in shovelfuls or bucketfuls into a
wheelbarrow or tray as the concrete continues to flow down the
delivery chute is an acceptable technique? - ANSWER-False
The concrete sample must be protected at all times from sun,
wind,____and - ANSWER-rapid evaporation, contaminants
If after consolidation of the final layer, the concrete layer is slightly
below the top of the measure, what should be done? - ANSWER-Add
a small quantity of concrete with the scoop before stirke off
What tools are required to perform an accurate strike-off of the
surface? - ANSWER-Strike off bar or tamping rod and rigid plate
,After completing the strike-off procedure, what must be done prior
to obtaining the gross mass of measure and sample?_____ -
ANSWER-Clean all excess concrete form exterior of bowl
all mass measurements shall be recorded to what accuracy? -
ANSWER-rounded to the nearest 0.05kg
The density calculation shall be recorded to what accuracy?___ -
ANSWER-1kg/m3
Net mass = 21.75kg - 4.90kg =
Density = 16.85kg /0.00727m3= - ANSWER-16.85kg
2318kg/m3
(Ma + Mf +Mc +Mw) =12000kg
Density = 2318kg/m3 (above)
Volume=(Ma + Mf + Mc +Mw)/D =12000kg/2318kg/m3 = - ANSWER-
12000kg
5.177m3
Ry = V/5 = 5.155/5 = - ANSWER-1.035
N1 = Mc/V = 1500kg/5.177m3 = - ANSWER-290kg/m3
, The mix design approved by the design engineer requires a minimum
cement content of 300kg/m^3. does the mix analyzed in question 15
above satisfy this requirement? - ANSWER-No, with only 290kg, it
does not contain sufficent cement to satisfy the target mix design.
Add cement or otherwise adjust yeild
Net mass = 42.95-9.45=
Density = 33.50 kg x65.65 = - ANSWER-33.50kg
2200kg/m3
net mass = 16.85 - 4.65 =
D = 12.20kg/0.00717m3 = - ANSWER-12.20kg
1702 kg/m3
The volumetirc method of determining air content of concrete can be
used on concrete containing what types of aggregate? - ANSWER-Any
type
What are the requiremnts for the strike-off bar used in this test
method? - ANSWER-6mm x 25mm x 450mm, steel bar
What is the volume of the measuring cup used to add alcohol to the
air meter, in relation to the volume of the air meter bowl? - ANSWER-
a capacity equal to 1% of the volume of the bowl
What type of alcohol must be used in this test method? - ANSWER-
isopropyl alcohol
2025 WITH 230 PREP QUESTIONS AND CORRECT ANSWERS/ ACI
FIELD TESTING GRADE 1 EXAM 2025/ CONCRETE FIELD TESTING
GRADE 1 TEST
The standard practice describes the _____ _____ and _____ required
to obtain a representative sample of fresh concrete and to assess its
tractability to the structure it represents. - ANSWER-procedures,
location and sample size
The procedures used in sampling shall include the use of every
precaution that will assist in obtaining samples that are truly
representative of the _____and _______ of the concrete. - ANSWER-
nature and conditions
Intermittent scooping of the sample in shovelfuls or bucketfuls into a
wheelbarrow or tray as the concrete continues to flow down the
delivery chute is an acceptable technique? - ANSWER-False
The concrete sample must be protected at all times from sun,
wind,____and - ANSWER-rapid evaporation, contaminants
If after consolidation of the final layer, the concrete layer is slightly
below the top of the measure, what should be done? - ANSWER-Add
a small quantity of concrete with the scoop before stirke off
What tools are required to perform an accurate strike-off of the
surface? - ANSWER-Strike off bar or tamping rod and rigid plate
,After completing the strike-off procedure, what must be done prior
to obtaining the gross mass of measure and sample?_____ -
ANSWER-Clean all excess concrete form exterior of bowl
all mass measurements shall be recorded to what accuracy? -
ANSWER-rounded to the nearest 0.05kg
The density calculation shall be recorded to what accuracy?___ -
ANSWER-1kg/m3
Net mass = 21.75kg - 4.90kg =
Density = 16.85kg /0.00727m3= - ANSWER-16.85kg
2318kg/m3
(Ma + Mf +Mc +Mw) =12000kg
Density = 2318kg/m3 (above)
Volume=(Ma + Mf + Mc +Mw)/D =12000kg/2318kg/m3 = - ANSWER-
12000kg
5.177m3
Ry = V/5 = 5.155/5 = - ANSWER-1.035
N1 = Mc/V = 1500kg/5.177m3 = - ANSWER-290kg/m3
, The mix design approved by the design engineer requires a minimum
cement content of 300kg/m^3. does the mix analyzed in question 15
above satisfy this requirement? - ANSWER-No, with only 290kg, it
does not contain sufficent cement to satisfy the target mix design.
Add cement or otherwise adjust yeild
Net mass = 42.95-9.45=
Density = 33.50 kg x65.65 = - ANSWER-33.50kg
2200kg/m3
net mass = 16.85 - 4.65 =
D = 12.20kg/0.00717m3 = - ANSWER-12.20kg
1702 kg/m3
The volumetirc method of determining air content of concrete can be
used on concrete containing what types of aggregate? - ANSWER-Any
type
What are the requiremnts for the strike-off bar used in this test
method? - ANSWER-6mm x 25mm x 450mm, steel bar
What is the volume of the measuring cup used to add alcohol to the
air meter, in relation to the volume of the air meter bowl? - ANSWER-
a capacity equal to 1% of the volume of the bowl
What type of alcohol must be used in this test method? - ANSWER-
isopropyl alcohol
