ACI Concrete Strength Testing Technician -
Practice Questions and Answers 2026 Guide
1. These procedures for capping enable concrete cylin- Planeness, perpendicular-
ders and cores to meet the standard practice's require- ity
ments for and .
2. Equipment needed for the capping process includes Plates, alignment, melting
capping , devices, and pots.
3. Plates for neat cement and high-strength gypsum Glass, metal, granite, or
plaster caps should be made of , , or . diabase
4. Sulfur mortar cap plates should be formed against Metal, stone
or plates.
5. T/F: The purpose of the guide bar or bull's eye level is T
to ensure that caps remain perpendicular to the axis
of the cylinder with 0.5 degrees.
6. To avoid accidents during reheating of cooled sulfur, Peripheral heating
use melting pots that have .
7. The technician should use a stiff layer of to cap Neat cement paste
fresh concrete cylinders.
8. Hardened concrete cylinders should be capped with High-strength gypsum
, , or . paste, neat cement paste,
or sulfur mortar
9. T/F: Plaster of paris and mixtures of plaster of paris and F
portland cement are examples of suitable strength
plasters.
10. 35 MPa {5000 psi}, the
cylinder strength
, ACI Concrete Strength Testing Technician -
Practice Questions and Answers 2026 Guide
Sulfur mortars and high-strength gypsum cement
cubes must demonstrate a minimum compressive
strength of or , whichever is greater.
11. The cement paste should be applied to the freshly 2, 4, setting
molded cylinder from to hours after molding.
This is to allow for of the concrete specimen.
12. The strength of the paste depends on: a) the water-ce- a b d
ment ratio b) time c) the equipment used d) type of
cement
13. Excess paste, voids A slight twisting action will
help eliminate and
air when the capping
plate is placed on the
mound of paste.
14. Neat cement paste caps should not be used on dry Shrink, crack
specimens because the caps may and when dry.
15. The technician should remove all or materials Oily, waxy
from the ends of hardened concrete cylinders before
capping.
16. the pot and recharge with fresh material at inter- Empty, 5
vals to ensure that the oldest material in the pot has
not been used more than times.
17. T/F: When capping concrete cylinders with a compres- F
sive strength of 35 MPa [5000 psi] or greater, it is
permitted to reuse compound recovered from the cap-
ping operation or old caps.
Practice Questions and Answers 2026 Guide
1. These procedures for capping enable concrete cylin- Planeness, perpendicular-
ders and cores to meet the standard practice's require- ity
ments for and .
2. Equipment needed for the capping process includes Plates, alignment, melting
capping , devices, and pots.
3. Plates for neat cement and high-strength gypsum Glass, metal, granite, or
plaster caps should be made of , , or . diabase
4. Sulfur mortar cap plates should be formed against Metal, stone
or plates.
5. T/F: The purpose of the guide bar or bull's eye level is T
to ensure that caps remain perpendicular to the axis
of the cylinder with 0.5 degrees.
6. To avoid accidents during reheating of cooled sulfur, Peripheral heating
use melting pots that have .
7. The technician should use a stiff layer of to cap Neat cement paste
fresh concrete cylinders.
8. Hardened concrete cylinders should be capped with High-strength gypsum
, , or . paste, neat cement paste,
or sulfur mortar
9. T/F: Plaster of paris and mixtures of plaster of paris and F
portland cement are examples of suitable strength
plasters.
10. 35 MPa {5000 psi}, the
cylinder strength
, ACI Concrete Strength Testing Technician -
Practice Questions and Answers 2026 Guide
Sulfur mortars and high-strength gypsum cement
cubes must demonstrate a minimum compressive
strength of or , whichever is greater.
11. The cement paste should be applied to the freshly 2, 4, setting
molded cylinder from to hours after molding.
This is to allow for of the concrete specimen.
12. The strength of the paste depends on: a) the water-ce- a b d
ment ratio b) time c) the equipment used d) type of
cement
13. Excess paste, voids A slight twisting action will
help eliminate and
air when the capping
plate is placed on the
mound of paste.
14. Neat cement paste caps should not be used on dry Shrink, crack
specimens because the caps may and when dry.
15. The technician should remove all or materials Oily, waxy
from the ends of hardened concrete cylinders before
capping.
16. the pot and recharge with fresh material at inter- Empty, 5
vals to ensure that the oldest material in the pot has
not been used more than times.
17. T/F: When capping concrete cylinders with a compres- F
sive strength of 35 MPa [5000 psi] or greater, it is
permitted to reuse compound recovered from the cap-
ping operation or old caps.
