ACI Certification- Concrete Field Testing Technician Grade 1 CP-1 (12) Questions with Correct Answers

ASTM C1064 Correct Answer Standard Test Method For Temperature of Freshly Mixed Hydraulic-Cement Concrete The sensor of the temperature measuring device shall be submerged a minimum of ______ inches into the freshly mixed concrete. Correct Answer 3" The temperature measuring device shall have a capacity of measuring temperature of freshly mixed concrete to ± ______ °F throughout a range of ____________. Correct Answer 1 degree, 30 degrees to 120 degrees The temperature measuring device shall be calibrated ______ , or whenever there is a question of ______ . Correct Answer Annually, accuracy The temperature of concrete may be measured in a wheelbarrow. True or False? Correct Answer True The temperature of concrete may be measured in a wall form. True or False? Correct Answer True What must be done to the sample container prior to sampling the concrete? Correct Answer Dampen with water What must be done to the concrete surrounding the temperature measuring device after the device is submerged in the fresh concrete? Correct Answer Close off air voids by gently pressing the concrete around the device How long must the temperature measuring device remain in the freshly mixed concrete? Correct Answer minimum of two minutes, maximum of five minutes The temperature of the concrete is reported to the nearest ______ °F Correct Answer 1 degree A maximum temperature of freshly mixed concrete is specified in ASTM C1064. True or False? Correct Answer False ASTM C172 Correct Answer Standard Practice for Sampling Freshly Mixed Concrete Sampling by this method is required when tests are to be made to determine _____ with specification requirements. Correct Answer Compliance This method covers sampling from four types of mixers, which are _____ , _____ , _____ , and _____ . Correct Answer Stationary mixers, paving mixers, revolving drum mixers and open top mixers