ACI CONCRETE FIELD TESTING
TECHNICIAN GRADE I EXAM ACTUAL
EXAM PAPER 2026 QUESTIONS WITH
ANSWERS GRADED A+
◉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]
◉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
, ◉The sample of concrete used for temperature determination must be
rodded 25 times. True or False? ANSWER: - False
◉Sampling by this method is required when tests are to be made to
determine _____ with specification requirements. ANSWER: -
Compliance
◉This method covers sampling from four types of mixtures which are
_____, _____, _____, and _____. ANSWER: - Stationary mixers,
paving mixers, revolving drum mixers, and open top mixers
◉The maximum allowable time between obtaining the first and final
portions of a composite sample is _____ minutes. ANSWER: - 15
◉Portions of a composite sample shall be thoroughly remixed bfore
beginning tests on the sample. True of False? ANSWER: - True
◉The maximum elapsed time allowed between obtaining the final
portion of the composite sample and beginning the tests for slump,
temperature, and air content is _____ minutes. ANSWER: - 5
◉The molding of strength test specimens shall begin within _____
minutes after fabricating the composite sample. ANSWER: - 15
◉The concrete sample must be protected from contamination and
_____. ANSWER: - Rapid evaporation
TECHNICIAN GRADE I EXAM ACTUAL
EXAM PAPER 2026 QUESTIONS WITH
ANSWERS GRADED A+
◉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]
◉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
, ◉The sample of concrete used for temperature determination must be
rodded 25 times. True or False? ANSWER: - False
◉Sampling by this method is required when tests are to be made to
determine _____ with specification requirements. ANSWER: -
Compliance
◉This method covers sampling from four types of mixtures which are
_____, _____, _____, and _____. ANSWER: - Stationary mixers,
paving mixers, revolving drum mixers, and open top mixers
◉The maximum allowable time between obtaining the first and final
portions of a composite sample is _____ minutes. ANSWER: - 15
◉Portions of a composite sample shall be thoroughly remixed bfore
beginning tests on the sample. True of False? ANSWER: - True
◉The maximum elapsed time allowed between obtaining the final
portion of the composite sample and beginning the tests for slump,
temperature, and air content is _____ minutes. ANSWER: - 5
◉The molding of strength test specimens shall begin within _____
minutes after fabricating the composite sample. ANSWER: - 15
◉The concrete sample must be protected from contamination and
_____. ANSWER: - Rapid evaporation
