ACI Concrete Field Testing Technician - 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 surroun