ACI WRITTEN EXAM
QUESTION SET ONE
◉ The temperature measuring device shall have a capacity or
measuring freshly mixed concrete to the nearest ________F. Answer: 1
degree
◉ The temperature measuring device shall be calibrated ________, or
whenever there is a question of its ____________________. Answer:
Annual, Accuracy
◉ The concrete temperature is read to the nearest ___________F.
Answer: 1 degree
◉ The temperature measuring device shall have a range of ______F to
_________F. Answer: 30,120
◉ The temperature may be measured in a wall form Answer: True
◉ The temperature measuring device must remain in the concrete
for a minimum of? Answer: 2 minutes
, ◉ With large aggregate of 3" diameter the concrete temperature
may take up to twenty minutes to stabilize due to heat transfer from
the aggregate to the cement paste. Answer: True
◉ The maximum time allowable time in between obtaining the first
and final portion of a composite sample is? Answer: 15 minutes
◉ The minimum size of a composite sample required when strength
specimens are to be molded Answer: 1 cf
◉ Sampling form a stationary mixer or revolving drum mixer, the
batch must be sampled at _____ or more regularly spaced intervals
Answer: 3
◉ 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. Answer: 5
◉ The test for slump, temperature, and air content must begin
within ____ minutes after fabricating the composite sample. Answer:
5
◉ The sample should be combined and remixed before testing
begins. Answer: True
QUESTION SET ONE
◉ The temperature measuring device shall have a capacity or
measuring freshly mixed concrete to the nearest ________F. Answer: 1
degree
◉ The temperature measuring device shall be calibrated ________, or
whenever there is a question of its ____________________. Answer:
Annual, Accuracy
◉ The concrete temperature is read to the nearest ___________F.
Answer: 1 degree
◉ The temperature measuring device shall have a range of ______F to
_________F. Answer: 30,120
◉ The temperature may be measured in a wall form Answer: True
◉ The temperature measuring device must remain in the concrete
for a minimum of? Answer: 2 minutes
, ◉ With large aggregate of 3" diameter the concrete temperature
may take up to twenty minutes to stabilize due to heat transfer from
the aggregate to the cement paste. Answer: True
◉ The maximum time allowable time in between obtaining the first
and final portion of a composite sample is? Answer: 15 minutes
◉ The minimum size of a composite sample required when strength
specimens are to be molded Answer: 1 cf
◉ Sampling form a stationary mixer or revolving drum mixer, the
batch must be sampled at _____ or more regularly spaced intervals
Answer: 3
◉ 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. Answer: 5
◉ The test for slump, temperature, and air content must begin
within ____ minutes after fabricating the composite sample. Answer:
5
◉ The sample should be combined and remixed before testing
begins. Answer: True
