ACI CONCRETE FIELD TESTING TECHNICIAN GRADE I EXAM NEWEST
2025 ACTUAL EXAM COMPLETE 150 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
The sensor of the temperature measuring device shall be submerged a
minimum of
in. [ mm] into the freshly mixed concrete. -
Answer- -3 in. [75 mm]
The temperature measuring device shall have a capacity of measuring
temperature of freshly mixed concrete to +- degrees F [+- C]
throughout a range of
.-
Answer--1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C]
The temperature measuring device shall be calibrated , or whenever there is
a question of .-
Answer--Annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. True or False? -
Answer--True
The temperature of concrete may be measured in a wall form. True of False -
Answer--True
A composite sample of concrete is required even if the only purpose for obtaining
the sample is to determine temperature. True of False? -
Answer--False
What must be done to the sample container prior to sampling the concrete? -
Answer--Dampen (with water)
What must be done to the concrete surrounding the temperature measuring
device after the device is submerged in the fresh concrete. -
Answer--Gently press the concrete around the temperature measuring device at the
surface of the concrete
How long must the temperature measuring device remain in the freshly mixed
concrete?
-
Answer--At least 2 minutes but not more than 5 minutes
After the temperature of the concrete is read, what is required? -
Answer--Reporting of temperature
The temperature of concrete is reported to the nearest degrees F [ C] -
Answer--1 degree F [0.5 C]
According to ASTM C1064, what is one reason to take the temperature of
concrete? -
,Answer--Verify conformance to a specified requirement for temperature of concrete
A maximum temperature of freshly mixed concrete is specified in ASTM C1064.
True of False? -
Answer--False
, The sample of concrete used for temperature determination must be rodded 25
times. True or False? -
Answer--False
Sampling by this method is required when tests are to be made to determine
wit
h specification requirements. -
Answer--Compliance
This method covers sampling from four types of mixtures which are , ,
, and .-
Answer--Stationary mixers, paving mixers, revolving drum mixers, and open top mixers
The maximum allowable time between obtaining the first and final
portions of a composite sample is minutes. -
Answer--15
Portions of a composite sample shall be thoroughly remixed bfore beginning
tests on the sample. True of False? -
Answer--True
The maximum elapsed time allowed between obtaining the final portion of the
composite sample and beginning the tests for slump, temperature, and air
content is
minutes. -
Answer--5
The molding of strength test specimens shall begin within minutes
after fabricating the composite sample. -
Answer--15
The concrete sample must be protected from contamination and . -
Answer--Rapid evaporation
The minimum size sample for making strength test specimens is . -
Answer--28 L (1ft^3)
When sampling from a stationary mixer, the batch must be sampled at or
more regularly spaced intervals during discharge of the middle portion of the
batch -
Answer--2
The composite sample for a paving mixer must represent a minimum of
differen
t portions of the batch of concrete taken from the pile after discharge. -
Answer--5
2025 ACTUAL EXAM COMPLETE 150 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
The sensor of the temperature measuring device shall be submerged a
minimum of
in. [ mm] into the freshly mixed concrete. -
Answer- -3 in. [75 mm]
The temperature measuring device shall have a capacity of measuring
temperature of freshly mixed concrete to +- degrees F [+- C]
throughout a range of
.-
Answer--1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C]
The temperature measuring device shall be calibrated , or whenever there is
a question of .-
Answer--Annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. True or False? -
Answer--True
The temperature of concrete may be measured in a wall form. True of False -
Answer--True
A composite sample of concrete is required even if the only purpose for obtaining
the sample is to determine temperature. True of False? -
Answer--False
What must be done to the sample container prior to sampling the concrete? -
Answer--Dampen (with water)
What must be done to the concrete surrounding the temperature measuring
device after the device is submerged in the fresh concrete. -
Answer--Gently press the concrete around the temperature measuring device at the
surface of the concrete
How long must the temperature measuring device remain in the freshly mixed
concrete?
-
Answer--At least 2 minutes but not more than 5 minutes
After the temperature of the concrete is read, what is required? -
Answer--Reporting of temperature
The temperature of concrete is reported to the nearest degrees F [ C] -
Answer--1 degree F [0.5 C]
According to ASTM C1064, what is one reason to take the temperature of
concrete? -
,Answer--Verify conformance to a specified requirement for temperature of concrete
A maximum temperature of freshly mixed concrete is specified in ASTM C1064.
True of False? -
Answer--False
, The sample of concrete used for temperature determination must be rodded 25
times. True or False? -
Answer--False
Sampling by this method is required when tests are to be made to determine
wit
h specification requirements. -
Answer--Compliance
This method covers sampling from four types of mixtures which are , ,
, and .-
Answer--Stationary mixers, paving mixers, revolving drum mixers, and open top mixers
The maximum allowable time between obtaining the first and final
portions of a composite sample is minutes. -
Answer--15
Portions of a composite sample shall be thoroughly remixed bfore beginning
tests on the sample. True of False? -
Answer--True
The maximum elapsed time allowed between obtaining the final portion of the
composite sample and beginning the tests for slump, temperature, and air
content is
minutes. -
Answer--5
The molding of strength test specimens shall begin within minutes
after fabricating the composite sample. -
Answer--15
The concrete sample must be protected from contamination and . -
Answer--Rapid evaporation
The minimum size sample for making strength test specimens is . -
Answer--28 L (1ft^3)
When sampling from a stationary mixer, the batch must be sampled at or
more regularly spaced intervals during discharge of the middle portion of the
batch -
Answer--2
The composite sample for a paving mixer must represent a minimum of
differen
t portions of the batch of concrete taken from the pile after discharge. -
Answer--5
