ACI Concrete Field-Testing Technician- Grade I
ACI Concrete Field-Testing Technician-
Grade I Study Guide Exam Questions
and Answers 2024
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]
, ACI Concrete Field-Testing Technician- Grade I
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
ACI Concrete Field-Testing Technician-
Grade I Study Guide Exam Questions
and Answers 2024
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]
, ACI Concrete Field-Testing Technician- Grade I
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
