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ACI- CONCRETE FIELD-TESTING
TECHNICIAN - GRADE 1 FINAL EXAM AND
PRACTICE EXAM QUESTIONS 2025 NEWEST
ACTUAL EXAM COMPLETE EXAM QUESTIONS
WITH DETAILED VERIFIED ANSWERS
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Q1. Start molding specimens for B. False
strength tests within 30 minutes
after fabricating the composite ASTM C172 -Para (4.1.2) - Start molding.
sample. specimens for strength tests within 15 min after fabricating the
composite sample.
A. True
B. False
Q2. The maximum allowable B. False
time between obtaining the first
and last portions of the ASTM C172 - Para (4.1)- The elapsed time shall not exceed 15 min.
composite sample may not between obtaining the first and final portions of the composite
exceed 5 minutes. sample.
A. True
B. False
Q3. The composite concrete A. True
sample must be protected from
sun, wind, contamination and ASTM C172 - Para (4.1.2)
rapid evaporation.
A. True
B. False
,Q4. If the concrete contains A. True
aggregates larger than those
that are appropriate for a size of ASTM C172- Para (6.1)
mold or equipment used, the
sample should be wet sieved
before making the test.
A. True
B. False
Q5. The composite sample B. False
should not be remixed before
beginning any tests. ASTM C172-Para (4.1.1) -The sample shall be combined and
remixed with a shovel the minimum amount necessary to ensure
A. True uniformity and compliance with the maximum time limits
B. False
B. False
Q6. Sampling should normally
be performed, as the concrete is ASTM C172-Para (5). NOTE 2—Sampling should normally be
discharged from the mixer. performed as the concrete is delivered from the mixer.
A. True To the conveying vehicle used to transport the
B. False concrete to the forms; however, specifications may require other
points of sampling, such as the discharge of a concrete pump.
Q7. ASTM Method C172 includes A. True
sampling from stationary mixers,
paving mixers, truck mixers, ASTM C172- Para (1.1)
agitators, and non-agitating
equipment.
A. True
B. False
Q8. After sampling is D. None of the above
completed, start the tests for
slump and air content within: ASTM C172- Para (4.1.2) Start tests for slump, temperature, and air
content within 5 min after obtaining the final portion of the
A. 2 ½ minutes composite sample.
B. 10 minutes
C. 15 minutes
D. None of the above
Q9. In any case, do not obtain A. All the water and admixtures have been added to the
samples until: concrete.
A. All the water and admixtures ASTM C172- Para (5.2.3). In any case do not obtain samples until
have been added to the after all of the water has been added to the mixer.
concrete
B. 200 revolutions of the drum
have been obtained
C. ½ of the water has been
added
D. None of the above
, A. 10% or after 90%
Q10. No samples shall be taken
ASTM C172- Para (5.2.1).
before_________ or after_________ of
the batch has been discharged.
NOTE 3—No samples should be taken before 10 % or after 90 %
of the batch has been discharged.
A. 10% or after 90%
B. 20% or after 90%
Due to the difficulty of determining the actual quantity of
C. 20% or after 80%
concrete discharged, the intent is to provide samples that are
D. None of the above
representative of widely separated portions, but not the
beginning and the end of the load.
Q11. When strength tests are to B. 1 cubic foot
be made, the minimum size of
the composite sample shall be: ASTM C172- Para (5.1).
A. ¼ cubic foot Make the samples to be used for strength tests a minimum of 28
B. 1 cubic foot L (1 ft3).
C. Any convenient size
D. 1 Wheelbarrow
Q12. Sample the concrete from B.
the chute of a truck mixer by:
Passing a receptacle completely through the discharge steam or
A. Raising chute to stop the flow by completely diverting the discharge into the sample container.
and scoop concrete from there
into the slump cone and ASTM C172- Para (5.2.3).
cylinder molds
B. Passing a receptacle
completely through the
discharge steam or by
completely diverting the
discharge into the sample
container
C. Holding a shovel in the flow
and direct half into a bucket
D. None of the above
Q13. Fresh concrete to be tested C. Two or more regularly spaced intervals during discharge of
at the job site should be the middle portion of the batch
sampled from:
ASTM C172- Para (5.2.1).
A. The beginning of mixer
discharge
B. The last concrete discharged
C. Two or more regularly spaced
intervals during discharge of the
middle portion of the batch
D. All of the above
ACI- CONCRETE FIELD-TESTING
TECHNICIAN - GRADE 1 FINAL EXAM AND
PRACTICE EXAM QUESTIONS 2025 NEWEST
ACTUAL EXAM COMPLETE EXAM QUESTIONS
WITH DETAILED VERIFIED ANSWERS
/ALREADY GRADED A+
Save
Students also studied
Diabetes NCLEX Questions Building Construction Final Exam ASE P2 Practice Quiz
Teacher 133 terms 133 terms Teacher 123 terms
Catherine_wanjiru89 Preview Titus_Kiilu9 Preview Nancy_Mukami8
Q1. Start molding specimens for B. False
strength tests within 30 minutes
after fabricating the composite ASTM C172 -Para (4.1.2) - Start molding.
sample. specimens for strength tests within 15 min after fabricating the
composite sample.
A. True
B. False
Q2. The maximum allowable B. False
time between obtaining the first
and last portions of the ASTM C172 - Para (4.1)- The elapsed time shall not exceed 15 min.
composite sample may not between obtaining the first and final portions of the composite
exceed 5 minutes. sample.
A. True
B. False
Q3. The composite concrete A. True
sample must be protected from
sun, wind, contamination and ASTM C172 - Para (4.1.2)
rapid evaporation.
A. True
B. False
,Q4. If the concrete contains A. True
aggregates larger than those
that are appropriate for a size of ASTM C172- Para (6.1)
mold or equipment used, the
sample should be wet sieved
before making the test.
A. True
B. False
Q5. The composite sample B. False
should not be remixed before
beginning any tests. ASTM C172-Para (4.1.1) -The sample shall be combined and
remixed with a shovel the minimum amount necessary to ensure
A. True uniformity and compliance with the maximum time limits
B. False
B. False
Q6. Sampling should normally
be performed, as the concrete is ASTM C172-Para (5). NOTE 2—Sampling should normally be
discharged from the mixer. performed as the concrete is delivered from the mixer.
A. True To the conveying vehicle used to transport the
B. False concrete to the forms; however, specifications may require other
points of sampling, such as the discharge of a concrete pump.
Q7. ASTM Method C172 includes A. True
sampling from stationary mixers,
paving mixers, truck mixers, ASTM C172- Para (1.1)
agitators, and non-agitating
equipment.
A. True
B. False
Q8. After sampling is D. None of the above
completed, start the tests for
slump and air content within: ASTM C172- Para (4.1.2) Start tests for slump, temperature, and air
content within 5 min after obtaining the final portion of the
A. 2 ½ minutes composite sample.
B. 10 minutes
C. 15 minutes
D. None of the above
Q9. In any case, do not obtain A. All the water and admixtures have been added to the
samples until: concrete.
A. All the water and admixtures ASTM C172- Para (5.2.3). In any case do not obtain samples until
have been added to the after all of the water has been added to the mixer.
concrete
B. 200 revolutions of the drum
have been obtained
C. ½ of the water has been
added
D. None of the above
, A. 10% or after 90%
Q10. No samples shall be taken
ASTM C172- Para (5.2.1).
before_________ or after_________ of
the batch has been discharged.
NOTE 3—No samples should be taken before 10 % or after 90 %
of the batch has been discharged.
A. 10% or after 90%
B. 20% or after 90%
Due to the difficulty of determining the actual quantity of
C. 20% or after 80%
concrete discharged, the intent is to provide samples that are
D. None of the above
representative of widely separated portions, but not the
beginning and the end of the load.
Q11. When strength tests are to B. 1 cubic foot
be made, the minimum size of
the composite sample shall be: ASTM C172- Para (5.1).
A. ¼ cubic foot Make the samples to be used for strength tests a minimum of 28
B. 1 cubic foot L (1 ft3).
C. Any convenient size
D. 1 Wheelbarrow
Q12. Sample the concrete from B.
the chute of a truck mixer by:
Passing a receptacle completely through the discharge steam or
A. Raising chute to stop the flow by completely diverting the discharge into the sample container.
and scoop concrete from there
into the slump cone and ASTM C172- Para (5.2.3).
cylinder molds
B. Passing a receptacle
completely through the
discharge steam or by
completely diverting the
discharge into the sample
container
C. Holding a shovel in the flow
and direct half into a bucket
D. None of the above
Q13. Fresh concrete to be tested C. Two or more regularly spaced intervals during discharge of
at the job site should be the middle portion of the batch
sampled from:
ASTM C172- Para (5.2.1).
A. The beginning of mixer
discharge
B. The last concrete discharged
C. Two or more regularly spaced
intervals during discharge of the
middle portion of the batch
D. All of the above
