ACI Field Grade 1 Practice Test 2024 Questions and Answers 100% Correct. ACI Field Grade 1 Practice Test 2024 Questions and Answers 100% Correct.

The temperature measuring device shall be cable of accurately measuring the temperature of freshly mixed concrete to 1°F throught a range of____________________________. - ANSWER 30 - 120°F Composite samples are required even if the only purpose for obtaining the sample is to determine temperature. - ANSWER False The temperature measuring device is left in the freshly mixed concrete for at least _______________ but not more than 5 minutes. - ANSWER 2 minutes Test Method C1064/C1064M specifies a maximum temperature of freshly mixed concrete. - ANSWER False The elapsed time between obtaining the first and final portions of a composite sample shall not exceed ____________________. - ANSWER 15 minutes Individual samples shall be combined and remixed with a shovel the minimum amount necessary to ensure uniformity. - ANSWER True The following test must be started within 5 minutes after obtaining the final portion of the composite sample: - ANSWER Slump, Temperature, Air Content The concrete sample must be protected from? - ANSWER Contamination & Evaporation When strength specimens are to be made, the minimum sample size is __________________. - ANSWER 1.0 ft3 Portions of the composite should be taken from the _______________of the batch discharge. - ANSWER Middle A composite sample taken from a paving mixer consists of _______________ individual samples taken from different portions of the pile. - ANSWER Five The process of removing aggregate larger than a designated size from the fresh concrete by sieving it on a sieve of the designated size is know as? - ANSWER Wet Sieving The slump test is considered applicable to plastic concrete having a coarse aggregate up to ____________________. - ANSWER 1 1/2 in. The height of the slump mold is_________________. - ANSWER 12 inches