ACI Concrete Practice Exam Questions With 100% Correct Answers 2024/2025

ACI Concrete Practice Exam Questions With 100% Correct Answers 2024/2025 The end of the temperature sensing portion of the temperature measuring device is submerged a minimum of _____ into the freshly mixed concrete - answer3 The temperature measuring device shall be capable of measuring the temperature of freshly mixed concrete from ___ to ___ degrees - answer30, 120 The temperature measuring device should be verified ____ or whenever there is a question of ___ - answerannually, accuracy The temp of concrete can be measured in wheelbarrow - answerTrue The temperature of the concrete can be measured in a wall form - answerTrue A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine temperature - answerTrue What must be done to the sample container prior to sampling concrete - answerWet the container what must be done to the concrete surrounding the temperature measuring device after the device is submerged in concrete. - answerClose the voids surrounding device After temp is taken what must be done after - answerRecord temp The temp is recorded to the nearest - answer1 F How long must the temperature measuring device remain in the freshly mixed concrete? - answer2-5 min According to Test Method C1064/C1064M, what is one reason to take the temperature of concrete? - answerVerify conformance to spec A maximum temperature of freshly mixed concrete is specified in Test Method C1064/C1064M, True or False - answerFalse The sample of concrete used for temp determination must be rodded 25 times, true or false - answerFalse Sampling by this practice covers procedures for obtaining representative samples, on which tests are to be performed to determine ___ with quality requirements of the specifications under which the concrete is furnished. - answerCompliance This practice covers sampling from five types of equipment, which are ___________, ___________, __________, __________, and __________. - answerStationary, Paving, Revolving Drum, Continuous, Open Top The elapsed time between obtaining the first and final portions of a composite sample shall not exceed _____ minutes. - answer15 Portions of a composite sample shall be throughly remixed before beginning tests on the sample - answerTrue Start the tests for slump, temperature, and air content within how many minutes after obtaining the final portion of the composite sample? - answer5 Start molding specimens for strength tests within how many minutes after fabricating the composite sample? - answer15