Aci - Concrete Strength Technician Training Exam Questions With 100% Correct Answers | Verified & Updated 2024

Align the _____ of the specimen with the center of thrust of the spherically seated block. {Ans: axis}(C1231) The diameter of the pad shall not be more than __ smaller than the inside diameter of the retaining ring {Ans: 1/16 in (2mm)}(C39) A correction factor is needed if the length to diameter ratio is ___ or less {Ans: 1.75 or less}The ends of freshly molded cylinders can be capped with what material? {Ans: Neat cement paste only (not high strength gypsum paste)}(C617) The vertical distance between the highest and lowest points on the end of an uncapped cylinder shall not exceed ___ {Ans: 1/8 inch (3mm)}Calibration of compression testing machine is required within an interval not to exceed __ months {Ans: 13 months}The average strength of cylinders tested with unbonded caps may not be less than ______ of the average strength of capped or ground companion cylinders, at a confidence level of ______. {Ans: 98%. Confidence level of 95%}The curved surface of the socket should be clean and lubricated with petroleum type oil at least every __ months {Ans: 6}(C78) How should force on the specimen be loaded? {Ans: continuously and