ACI CERTIFICATION TESTS EXAM STUDY
GUIDE 2026 PRACTICE QUESTIONS WITH FULL
SOLUTION GRADED A+
◉ 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.)
◉ 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)
GUIDE 2026 PRACTICE QUESTIONS WITH FULL
SOLUTION GRADED A+
◉ 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.)
◉ 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)
