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ACI CONCRETE FIELD TESTING
TECHNICIAN- GRADE I EXAM 2026
WITH QUESTIONS AND ANSWERS
The sensor of the temperature measuring device shall be submerged a
minimum of _____ in. [_____mm] into the freshly mixed concrete. - correct
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 _____. - correct 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 _____. - correct answer-Annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. True or
False? - correct answer-True
The temperature of concrete may be measured in a wall form. True of
False - correct answer-True
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A composite sample of concrete is required even if the only purpose for
obtaining the sample is to determine temperature. True of False? - correct
answer-False
What must be done to the sample container prior to sampling the concrete?
- correct 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. - correct
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? - correct answer-At least 2 minutes but not more than 5
minutes
After the temperature of the concrete is read, what is required? - correct
answer-Reporting of temperature
The temperature of concrete is reported to the nearest _____ degrees F
[_____ C] - correct answer-1 degree F [0.5 C]
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According to ASTM C1064, what is one reason to take the temperature of
concrete? - correct 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? - correct answer-False
The sample of concrete used for temperature determination must be
rodded 25 times. True or False? - correct answer-False
Sampling by this method is required when tests are to be made to
determine _____ with specification requirements. - correct answer-
Compliance
This method covers sampling from four types of mixtures which are _____,
_____, _____, and _____. - correct 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. - correct answer-15
Portions of a composite sample shall be thoroughly remixed bfore
beginning tests on the sample. True of False? - correct answer-True
ACI CONCRETE FIELD TESTING
TECHNICIAN- GRADE I EXAM 2026
WITH QUESTIONS AND ANSWERS
The sensor of the temperature measuring device shall be submerged a
minimum of _____ in. [_____mm] into the freshly mixed concrete. - correct
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 _____. - correct 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 _____. - correct answer-Annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. True or
False? - correct answer-True
The temperature of concrete may be measured in a wall form. True of
False - correct answer-True
,2 |Page
A composite sample of concrete is required even if the only purpose for
obtaining the sample is to determine temperature. True of False? - correct
answer-False
What must be done to the sample container prior to sampling the concrete?
- correct 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. - correct
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? - correct answer-At least 2 minutes but not more than 5
minutes
After the temperature of the concrete is read, what is required? - correct
answer-Reporting of temperature
The temperature of concrete is reported to the nearest _____ degrees F
[_____ C] - correct answer-1 degree F [0.5 C]
, 3 |Page
According to ASTM C1064, what is one reason to take the temperature of
concrete? - correct 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? - correct answer-False
The sample of concrete used for temperature determination must be
rodded 25 times. True or False? - correct answer-False
Sampling by this method is required when tests are to be made to
determine _____ with specification requirements. - correct answer-
Compliance
This method covers sampling from four types of mixtures which are _____,
_____, _____, and _____. - correct 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. - correct answer-15
Portions of a composite sample shall be thoroughly remixed bfore
beginning tests on the sample. True of False? - correct answer-True
