ACI Concrete Field Testing Technician - Grade I questions with correct answers

Grade I questions with correct answers The end of the temperature sensing portion of the temperature measuring device is submerged a minimum of __mm [__in.] into the freshly mixed concrete. Answer 77mm /3in. The temperature measuring device shall be capable of accurately measuring the temperature of freshly mixed concrete to +- __C [+__F] throught a range of __. Answer 0.5 C / +-1F / 0-50 Decrees C The temp. measuring device shall be verified __, or whenever there is a question of __. Answer Annually / accuracy The temp of concrete may be measured in a wheelbarrow? T/F Answer True The temp. of concrete may be measured in a wall form. T/F Answer True A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine temp. T/F Answer False What must be done to the sample container prior to sampling the concrete Answer It must be dampened with water What must be done to the concrete surrounding the temp measuring device after the device is submerged in the fresh concrete? Answer Gently press the concrete at the surface around the measuring device. How long must the temperature measuring device rem