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ACI CONCRETE FIELD TESTING
TECHNICIAN- GRADE I QUESTIONS
WITH CORRECT ANSWERS LATEST
UPDATE 2026
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
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The temperature of concrete may be measured in a wall form.
True of False - correct 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? - 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
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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]
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
ACI CONCRETE FIELD TESTING
TECHNICIAN- GRADE I QUESTIONS
WITH CORRECT ANSWERS LATEST
UPDATE 2026
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
, Page | 2
The temperature of concrete may be measured in a wall form.
True of False - correct 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? - 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
, Page | 3
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]
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
