ACI Certification Concrete Field
Testing Tech Grade 1 Exam
The end of the temperature sensing portion of the temperature measuring device is
submerged a minimum of ___________ into FRESHLY mixed concrete. - correct
Answer-75 mm (3 in)
The temperature measuring device shall be capable of accurately measuring the
temperature of freshly mixed concrete to _______________ throughout a range of
____________ C to _____________ C and _____________ F to ___________ F. -
correct Answer-0.5 C (1 F), 0-50 C (30-120 F)
The temperature measuring device shall be verified ______________, or whenever
there is a question of ________________. - correct Answer-annually, accuracy
the temperature of concrete may be measured in a wheelbarrow? true or false - correct
Answer-true
the temperature of concrete may be measuring in a wall form? true or false - correct
Answer-true
A composite sample of concrete is required even if the only purpose for obtaining the
sample is to determine temperature? true or false - correct Answer-false
what must be done to the sample container prior to sampling the concrete? - correct
Answer-dampen
What must be done to the concrete surrounding the temperature measuring device after
the device is submerged in the fresh concrete? - correct Answer-gently press concrete
around tmd
How long must the temperature measuring device remain in the freshly mixed concrete?
- correct Answer-2-5 min
After the temperature of the concrete is read, what is then required? - correct Answer-
report the temp
The temperature of the concrete is reported to the nearest ________________. -
correct Answer-0.5 C (1 F)
, According to Test Method C1064/1064M, what is one reason to take the temperature of
concrete? - correct Answer-verify conformance to specified requirements
A maximum temperature of freshly mixed concrete is specified in C1064/1064M. true or
false - correct Answer-false
The sample of concrete used for temperature determination must be rodded 25 times.
true or false - correct Answer-false
C143\C143M - correct Answer-test method testing slump
The slump test is applicable to plastic concrete with a maximum size aggregate of
______ - correct Answer-1.5 inches (37.5 mm)
When the concrete contains aggregate larger than allowed for the slump test, the large
aggregate must - correct Answer-wet-sieved (over 37.5 mm sieve)
The mold for making the slump test is in the shape of a _______ - correct Answer-
frustum of a cone
The height of a slump mold is_______ - correct Answer-12 in (300 mm)
The interior surface of the slump mold is allowed to have minor irregularities. True or
false? - correct Answer-false
For use in the slump test the end or both ends of the tamping rod must be _______ -
correct Answer-rounded (hemispherical)
The sample of concrete for use in making the slump test must be obtained in
accordance with practice_____ - correct Answer-C172
The slump mold must be in a dry condition before beginning the test. True or false? -
correct Answer-false
The surface on which the slump mold will be placed must be ______, _________,
_________, and __________ - correct Answer-flat, moist, nonabsorbent, rigid
The slump mold is filled in ___ layers - correct Answer-3
Each (slump) layer should fill approximately ____ the volume of the cone - correct
Answer-1/3
(slump) The approximate concrete depth after placing the first layer is ______, and the
second layer is______. - correct Answer-2 5/8 in (70 mm), 6 1/8 (160 mm)
Testing Tech Grade 1 Exam
The end of the temperature sensing portion of the temperature measuring device is
submerged a minimum of ___________ into FRESHLY mixed concrete. - correct
Answer-75 mm (3 in)
The temperature measuring device shall be capable of accurately measuring the
temperature of freshly mixed concrete to _______________ throughout a range of
____________ C to _____________ C and _____________ F to ___________ F. -
correct Answer-0.5 C (1 F), 0-50 C (30-120 F)
The temperature measuring device shall be verified ______________, or whenever
there is a question of ________________. - correct Answer-annually, accuracy
the temperature of concrete may be measured in a wheelbarrow? true or false - correct
Answer-true
the temperature of concrete may be measuring in a wall form? true or false - correct
Answer-true
A composite sample of concrete is required even if the only purpose for obtaining the
sample is to determine temperature? true or false - correct Answer-false
what must be done to the sample container prior to sampling the concrete? - correct
Answer-dampen
What must be done to the concrete surrounding the temperature measuring device after
the device is submerged in the fresh concrete? - correct Answer-gently press concrete
around tmd
How long must the temperature measuring device remain in the freshly mixed concrete?
- correct Answer-2-5 min
After the temperature of the concrete is read, what is then required? - correct Answer-
report the temp
The temperature of the concrete is reported to the nearest ________________. -
correct Answer-0.5 C (1 F)
, According to Test Method C1064/1064M, what is one reason to take the temperature of
concrete? - correct Answer-verify conformance to specified requirements
A maximum temperature of freshly mixed concrete is specified in C1064/1064M. true or
false - correct Answer-false
The sample of concrete used for temperature determination must be rodded 25 times.
true or false - correct Answer-false
C143\C143M - correct Answer-test method testing slump
The slump test is applicable to plastic concrete with a maximum size aggregate of
______ - correct Answer-1.5 inches (37.5 mm)
When the concrete contains aggregate larger than allowed for the slump test, the large
aggregate must - correct Answer-wet-sieved (over 37.5 mm sieve)
The mold for making the slump test is in the shape of a _______ - correct Answer-
frustum of a cone
The height of a slump mold is_______ - correct Answer-12 in (300 mm)
The interior surface of the slump mold is allowed to have minor irregularities. True or
false? - correct Answer-false
For use in the slump test the end or both ends of the tamping rod must be _______ -
correct Answer-rounded (hemispherical)
The sample of concrete for use in making the slump test must be obtained in
accordance with practice_____ - correct Answer-C172
The slump mold must be in a dry condition before beginning the test. True or false? -
correct Answer-false
The surface on which the slump mold will be placed must be ______, _________,
_________, and __________ - correct Answer-flat, moist, nonabsorbent, rigid
The slump mold is filled in ___ layers - correct Answer-3
Each (slump) layer should fill approximately ____ the volume of the cone - correct
Answer-1/3
(slump) The approximate concrete depth after placing the first layer is ______, and the
second layer is______. - correct Answer-2 5/8 in (70 mm), 6 1/8 (160 mm)
