ACI Exam Practice
60-80*F - Answer-For normal strength concretes, what temperature range must be maintained for test
cylinders during initial curing?
5 minutes - Answer-Tests for the slump and air content must be started within ____ after obtaining the
final portion of the composite sample.
Disregard the test and retest another portion of the sample. - Answer-While the technician is checking
the slump of the concrete, there is a decided falling away or shearing off of concrete from one side of
the sample. What should the technician do?
Determination that at least 8 hours have elapsed since final set. - Answer-Preparation of the specimens
for transport includes.
4.8% - Answer-If the aggregate correction factor for a given source of fine and coarse aggregate is found
to be 0.2% in a pressure air meter, and an air content value of 5.0% is read on the gage of the same air
meter containing concrete with the same aggregate, what is the correct air content?
Protected from jarring, moisture loss, freezing - Answer-Strength test specimens transported from the
field to the testing laboratory must be.
60-80*F - Answer-For normal strength concretes, what temperature range must be maintained for test
cylinders during initial curing?
5 minutes - Answer-Tests for the slump and air content must be started within ____ after obtaining the
final portion of the composite sample.
Disregard the test and retest another portion of the sample. - Answer-While the technician is checking
the slump of the concrete, there is a decided falling away or shearing off of concrete from one side of
the sample. What should the technician do?
Determination that at least 8 hours have elapsed since final set. - Answer-Preparation of the specimens
for transport includes.
4.8% - Answer-If the aggregate correction factor for a given source of fine and coarse aggregate is found
to be 0.2% in a pressure air meter, and an air content value of 5.0% is read on the gage of the same air
meter containing concrete with the same aggregate, what is the correct air content?
Protected from jarring, moisture loss, freezing - Answer-Strength test specimens transported from the
field to the testing laboratory must be.
