ACI Grade 1 Field Testing Certification
Practice Exam 2026 Questions and
Answers
For concrete with aggregates less than 3 inches, the thermometer must remain in
the fresh concrete sample a minimum of 5 minutes or until the temperature reading
stabilizes. (T or F) - Answer -False (2-5 minutes)
The temperature measuring device must be accurate to within 0.1 degree. (T or F) -
Answer -
The temperature measuring device shall have a capacity of measuring temperature
of freshly mixed concrete throughout a range of _____ to _____ degree F ( ______
to ______ degree C) - Answer -30 to 120 degree F ( 0 to 50 degree C)
A composite sample is not needed if only the temperature test is being run. (T or F)
- Answer -True
The temperature of fresh concrete in a placement must be measured by inserting a
thermometer into the top six inches of concrete. (T or F) - Answer -False (3 in.)
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, The temperature of the concrete is recorded to the nearest ______ degree F
(______ degree C) - Answer -1 degree F (0.5 degree C)
ASTM C1064 states the container used to measure temperature of concrete must
be large enough to provide at least 5 inches of concrete around the sensor. (T or F)
- Answer -
Calibrate the temperature measuring device at least __________, or whenever
there is a question of accuracy. - Answer -Annually
After the thermometer is placed in the concrete: - Answer -Gently press concrete
around the thermometer
According to ASTM C1064, what is one reason to take the temperature of
concrete? - Answer -Verify conformance
It is allowable to remove the temperature measuring devices from the freshly
mixed concrete to read the temperature if you cannot see the reading. (T or F) -
Answer -False
The maximum allowable time between obtaining the first and last portions of the
composite sample may not exceed 5 minutes. (T or F) - Answer -False
Start molding specimens for strength tests within 30 minutes after fabricating the
composite sample. (T or F) - Answer -False (15 mins)
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Practice Exam 2026 Questions and
Answers
For concrete with aggregates less than 3 inches, the thermometer must remain in
the fresh concrete sample a minimum of 5 minutes or until the temperature reading
stabilizes. (T or F) - Answer -False (2-5 minutes)
The temperature measuring device must be accurate to within 0.1 degree. (T or F) -
Answer -
The temperature measuring device shall have a capacity of measuring temperature
of freshly mixed concrete throughout a range of _____ to _____ degree F ( ______
to ______ degree C) - Answer -30 to 120 degree F ( 0 to 50 degree C)
A composite sample is not needed if only the temperature test is being run. (T or F)
- Answer -True
The temperature of fresh concrete in a placement must be measured by inserting a
thermometer into the top six inches of concrete. (T or F) - Answer -False (3 in.)
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, The temperature of the concrete is recorded to the nearest ______ degree F
(______ degree C) - Answer -1 degree F (0.5 degree C)
ASTM C1064 states the container used to measure temperature of concrete must
be large enough to provide at least 5 inches of concrete around the sensor. (T or F)
- Answer -
Calibrate the temperature measuring device at least __________, or whenever
there is a question of accuracy. - Answer -Annually
After the thermometer is placed in the concrete: - Answer -Gently press concrete
around the thermometer
According to ASTM C1064, what is one reason to take the temperature of
concrete? - Answer -Verify conformance
It is allowable to remove the temperature measuring devices from the freshly
mixed concrete to read the temperature if you cannot see the reading. (T or F) -
Answer -False
The maximum allowable time between obtaining the first and last portions of the
composite sample may not exceed 5 minutes. (T or F) - Answer -False
Start molding specimens for strength tests within 30 minutes after fabricating the
composite sample. (T or F) - Answer -False (15 mins)
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
