aci exam practice questions and answers 100% verified and Updated

aci exam practice questions and answers 100% verified and Updated 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. 28L (1ft3) - Answer- The minimum size for samples to be used for strength tests is. fasle - Answer- After striking off of the measure used to determine density, a small quantity of concrete may be added to correct the deficiency.