ACI - Concrete Strength Technician Training Exam Questions With 100% Correct Answers |Latest Update 2025/2026

ACI - Concrete Strength Technician Training Exam Questions With 100% Correct Answers |Latest Update 2025/2026 Standard Practice for Capping Cylindrical Concrete Specimens - answer-ASTM C617 Procedures for capping enable concrete cylinders and cores to meet C617's practice requirements for___ and___. - answer-Perpendicularity, Planeness ___ can be made of glass, machined metal, polished granite, or diabase. (C617) - answer-Capping plates Sulfur caps can be formed against ___ or___ plates. - answer-Metal, stone The working surface of a capping plate shall not depart from plane by more than___ mm. - answer-0.05 Device used in conjunction with a capping plate to ensure perpendicularity. - answer-Alignment device Perpendicularity requirement of the axis of a cylindrical specimen. (degrees) - answer-0.5 The element of a melting pot that ensures against accidents during reheating of cooled sulfur. - answerPeripheral Heating Temperature of the sulfur mortar pot/materials. - answer-265-290 F Capping material to be used on freshly molded cylinders. - answer-Neat Portland Cement pasteRemove this from the end of cylinders before capping. - answer-Oily or Waxy materials Materials that can be used to cap hardened cement concrete cylinders. - answer-Neat Portland Cement, Gypsum Cement, Sulfur T/F Plaster of paris is an example of a high-strength plaster - answer-False Sulfur and gypsum cubes much show this compressive strength or the cylinder strength, whichever is greater. - answer-5000 psi Strength of the paste depends on___, ___, and___. - answer-Water cement ratio, time, type of cement These are avoided when a slight twisting motion is applied while capping. - answer-Air voids and excess paste Sulfur material should not be used more than ___ times. - answer-5 T/F When capping concrete cylinders with a compressive strength of 5000 psi or greater, it is permitted to reuse compound recovered from the capping operation of old caps. - answer-False Sulfur mortar should be kept away from this while heating. - answer-Water Sulfur mortar should be kept under a ___ with an___ for venting. - answer-Hood, exhaust