ACI GRADE 1 FIELD TESTING CERTIFICATION
PRACTICE TEST - IRVING EXPECTED QUESTIONS WITH
VERIFIED ANSWERS
Question 1.
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)
Question 2.
The temperature measuring device must be accurate to within 0.1 degree. (T or F)
ANSWER
Question 3.
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)
Question 4.
A composite sample is not needed if only the temperature test is being run. (T or F)
ANSWER
True
Question 5.
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.)
Question 6.
The temperature of the concrete is recorded to the nearest ______ degree F (______ degree C)
ANSWER
1 degree F (0.5 degree C)
1
, Question 7.
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
Question 8.
Calibrate the temperature measuring device at least __________, or whenever there is a question
of accuracy.
ANSWER
Annually
Question 9.
After the thermometer is placed in the concrete:
ANSWER
thermometer
Question 10.
According to ASTM C1064, what is one reason to take the temperature of concrete?
ANSWER
Verify conformance
Question 11.
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
Question 12.
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
2
PRACTICE TEST - IRVING EXPECTED QUESTIONS WITH
VERIFIED ANSWERS
Question 1.
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)
Question 2.
The temperature measuring device must be accurate to within 0.1 degree. (T or F)
ANSWER
Question 3.
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)
Question 4.
A composite sample is not needed if only the temperature test is being run. (T or F)
ANSWER
True
Question 5.
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.)
Question 6.
The temperature of the concrete is recorded to the nearest ______ degree F (______ degree C)
ANSWER
1 degree F (0.5 degree C)
1
, Question 7.
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
Question 8.
Calibrate the temperature measuring device at least __________, or whenever there is a question
of accuracy.
ANSWER
Annually
Question 9.
After the thermometer is placed in the concrete:
ANSWER
thermometer
Question 10.
According to ASTM C1064, what is one reason to take the temperature of concrete?
ANSWER
Verify conformance
Question 11.
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
Question 12.
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
2
