ACI CONCRETE STRENGTH TESTING
TECHNICIAN TEST EXAM 2025
NEWEST COMPLETE EXAM
QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+
The formula, R = PL/bd², measures the modulus of
rupture at which location? - ....ANSWER...In the
tension surface within the middle third of the span
length
The final report should include both the average width
and depth to the nearest ____ inch. - ....ANSWER...0.05
inch
The report must also include information about the
_____ length , the _____ applied load and the _____ of
rupture. - ....ANSWER...Span, maximum, modulus
,The apparatus diagrammed in figure 1 may be inverted
under special circumstances. True or False? -
....ANSWER...True
Standard Practice for Capping Cylindrical Concrete
Specimens - ....ANSWER...ASTM C617
Procedures for capping enable concrete cylinders and
cores to meet C617's practice requirements for___
and___. - ....ANSWER...Perpendicularity, Planeness
___ can be made of glass, machined metal, polished
granite, or diabase. (C617) - ....ANSWER...Capping
plates
Sulfur caps can be formed against ___ or___ plates. -
....ANSWER...Metal, stone
The working surface of a capping plate shall not depart
from plane by more than___ mm. - ....ANSWER...0.05
Device used in conjunction with a capping plate to
ensure perpendicularity. - ....ANSWER...Alignment
device
,Perpendicularity requirement of the axis of a cylindrical
specimen. (degrees) - ....ANSWER...0.5
The element of a melting pot that ensures against
accidents during reheating of cooled sulfur. -
....ANSWER...Peripheral Heating
Temperature of the sulfur mortar pot/materials. -
....ANSWER...265-290 F
Capping material to be used on freshly molded cylinders.
- ....ANSWER...Neat Portland Cement paste
Remove this from the end of cylinders before capping. -
....ANSWER...Oily or Waxy materials
Materials that can be used to cap hardened cement
concrete cylinders. - ....ANSWER...Neat Portland
Cement, Gypsum Cement, Sulfur
T/F Plaster of paris is an example of a high-strength
plaster - ....ANSWER...False
, Sulfur and gypsum cubes much show this compressive
strength or the cylinder strength, whichever is greater. -
....ANSWER...5000 psi
Strength of the paste depends on___, ___, and___. -
....ANSWER...Water cement ratio, time, type of cement
These are avoided when a slight twisting motion is
applied while capping. - ....ANSWER...Air voids and
excess paste
Sulfur material should not be used more than ___ times.
- ....ANSWER...5
T/F When capping concrete cylinders with a
compressive strength of 5000 psi or greater, it is
permitted to reuse compound recovered from the
capping operation of old caps. - ....ANSWER...False
Sulfur mortar should be kept away from this while
heating. - ....ANSWER...Water
TECHNICIAN TEST EXAM 2025
NEWEST COMPLETE EXAM
QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+
The formula, R = PL/bd², measures the modulus of
rupture at which location? - ....ANSWER...In the
tension surface within the middle third of the span
length
The final report should include both the average width
and depth to the nearest ____ inch. - ....ANSWER...0.05
inch
The report must also include information about the
_____ length , the _____ applied load and the _____ of
rupture. - ....ANSWER...Span, maximum, modulus
,The apparatus diagrammed in figure 1 may be inverted
under special circumstances. True or False? -
....ANSWER...True
Standard Practice for Capping Cylindrical Concrete
Specimens - ....ANSWER...ASTM C617
Procedures for capping enable concrete cylinders and
cores to meet C617's practice requirements for___
and___. - ....ANSWER...Perpendicularity, Planeness
___ can be made of glass, machined metal, polished
granite, or diabase. (C617) - ....ANSWER...Capping
plates
Sulfur caps can be formed against ___ or___ plates. -
....ANSWER...Metal, stone
The working surface of a capping plate shall not depart
from plane by more than___ mm. - ....ANSWER...0.05
Device used in conjunction with a capping plate to
ensure perpendicularity. - ....ANSWER...Alignment
device
,Perpendicularity requirement of the axis of a cylindrical
specimen. (degrees) - ....ANSWER...0.5
The element of a melting pot that ensures against
accidents during reheating of cooled sulfur. -
....ANSWER...Peripheral Heating
Temperature of the sulfur mortar pot/materials. -
....ANSWER...265-290 F
Capping material to be used on freshly molded cylinders.
- ....ANSWER...Neat Portland Cement paste
Remove this from the end of cylinders before capping. -
....ANSWER...Oily or Waxy materials
Materials that can be used to cap hardened cement
concrete cylinders. - ....ANSWER...Neat Portland
Cement, Gypsum Cement, Sulfur
T/F Plaster of paris is an example of a high-strength
plaster - ....ANSWER...False
, Sulfur and gypsum cubes much show this compressive
strength or the cylinder strength, whichever is greater. -
....ANSWER...5000 psi
Strength of the paste depends on___, ___, and___. -
....ANSWER...Water cement ratio, time, type of cement
These are avoided when a slight twisting motion is
applied while capping. - ....ANSWER...Air voids and
excess paste
Sulfur material should not be used more than ___ times.
- ....ANSWER...5
T/F When capping concrete cylinders with a
compressive strength of 5000 psi or greater, it is
permitted to reuse compound recovered from the
capping operation of old caps. - ....ANSWER...False
Sulfur mortar should be kept away from this while
heating. - ....ANSWER...Water
