ACI Written Exam Questions and Answers Already Passed

ACI Written Exam Questions and Answers Already Passed The sensor of the temperature measureing device shall be submerged a minimum of ____ in 3 (75mm) The temperature measureing device shall have a capacity of measuring temperature of freshly mixed conrcrete to +-_____ degrees F throught a range of _____ 1(.5 degrees C), 30-120 (0- 50 degrees C) The temperature measuring device shall be calibrated____, or whenever there is a question of _____ annually, accuracy The temp of concrete may be measured in a wheelbarrow true the temp of concrete may be measured in a wall form true A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine temp. false What must be done to the sample container prior to sampling the concrete dampen (with water) what must be done to the concrete surrounding the temp measuring device after the device has submerged Press concrete around measuring device How long must the temp device remain in the concrete at least 2 minutes (but no more than 5) After temp of concrete is read, what then is required reporting of temp the temp of concrete to be measured to the nearest ____degree F 1 (.5 degree C) According to the ASTM C1064 what is one reason to take the temp of concrete verify conformance to a specified requirement for temp A max temp of concrete is specified in ASTM C1064 False The sample of concrete used for temp determination must be rodded 25 times False Sampling by this method is required when tests are to be made to determine ____ with specification requirements compliance The method covers sampling from four types of mixers which are _____, _____, ____, and _______ stationary mixes, paving mixers, revolving drum mixers and open top mixers The maximum allowable time between obtaining the first and final portions of a composite sample is ______ minutes 15 Portions of a composite sample shall be thoroughly