ACI CONCRETE FIELD TESTING TECHNICIAN GRADE 1 EXAM WITH QUIZ ANS (100 SOLVED).

ACI
ACI CONCRETE FIELD TESTING TECHNICIAN GRADE 1
EXAM WITH QUIZ & ANS
(100%
SOLVED)
The sensor of the temperature measuring device shall be submerged a
minimum of _____ in.
[_____mm] into the freshly mixed concrete. - ✔✔✔–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 _____. - ✔✔✔–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 _____. - ✔✔✔–Annually, accuracy



The temperature of concrete may be measured in a wheelbarrow. True or
False? - ✔✔✔–True



The temperature of concrete may be measured in a wall form. True of False -
✔✔✔–True



A composite sample of concrete is required even if the only purpose for
obtaining the sample is to determine temperature. True of False? - ✔✔✔–
False



What must be done to the sample container prior to sampling the concrete? -
✔✔✔–Dampen (with water)



What must be done to the concrete surrounding the temperature measuring
device after the device is submerged in the fresh concrete. - ✔✔✔–Gently
press the concrete around the temperature measuring device at the surface
of the concrete


ACI CONCRETE FIELD TESTING TECHNICIAN GRADE 1 EXAM WITH QUIZ & ANS (100% SOLVED)

,ACI
ACI CONCRETE FIELD TESTING TECHNICIAN GRADE 1
EXAM WITH QUIZ & ANS
(100%
SOLVED)
How long must the temperature measuring device remain in the freshly
mixed concrete? -
✔✔✔–At least 2 minutes but not more than 5 minutes



After the temperature of the concrete is read, what is required? - ✔✔✔–
Reporting of temperature



The temperature of concrete is reported to the nearest _____ degrees F [_____
C] - ✔✔✔–1 degree F [0.5 C]



According to ASTM C1064, what is one reason to take the temperature of
concrete? - ✔✔✔–
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? -
✔✔✔–False



The sample of concrete used for temperature determination must be rodded
25 times. True or False? - ✔✔✔–False



Sampling by this method is required when tests are to be made to determine
_____ with specification requirements. - ✔✔✔–Compliance



This method covers sampling from four types of mixtures which are _____,
_____, _____, and
_____. - ✔✔✔–Stationary mixers, paving mixers, revolving drum mixers, and
open top mixers




ACI CONCRETE FIELD TESTING TECHNICIAN GRADE 1 EXAM WITH QUIZ & ANS (100% SOLVED)

, ACI
ACI CONCRETE FIELD TESTING TECHNICIAN GRADE 1
EXAM WITH QUIZ & ANS
(100%
SOLVED)
The maximum allowable time between obtaining the first and final portions
of a composite sample is _____ minutes. - ✔✔✔–15



Portions of a composite sample shall be thoroughly remixed bfore beginning
tests on the sample. True of False? - ✔✔✔–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. -
✔✔✔–5



The molding of strength test specimens shall begin within _____ minutes after
fabricating the composite sample. - ✔✔✔–15



The concrete sample must be protected from contamination and _____. -
✔✔✔–Rapid evaporation



The minimum size sample for making strength test specimens is _____. -
✔✔✔–28 L (1ft^3)



When sampling from a stationary mixer, the batch must be sampled at _____
or more regularly spaced intervals during discharge of the middle portion of
the batch - ✔✔✔–2



The composite sample for a paving mixer must represent a minimum of _____
different portions of the batch of concrete taken from the pile after
discharge. - ✔✔✔–5




ACI CONCRETE FIELD TESTING TECHNICIAN GRADE 1 EXAM WITH QUIZ & ANS (100% SOLVED)