ACI Concrete Field-Testing Technician - Grade I Question with Correct Answers 100% Verified

ACI Concrete Field-Testing Technician - Grade I Question with Correct Answers 100% Verified The sensor of the temperature measuring device shall be submerged a minimum of _____ in. [_____mm] into the freshly mixed concrete. - Correct Answer 3 in. [75 mm] The temperature measuring device shall have a capacity of measuring temperature of freshly mixed concrete to +- _____ degrees F [+- _____ C] throughout a range of _____. - Correct Answer 1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C] 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 of False - Correct Answer True A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine temperature. True of False? - Correct Answer False 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 Gently press the concrete around the temperature measuring device at the surface of the concrete How long must the temperature measuring device remain in the freshly mixed concrete? - Correct Answer At least 2 minutes but not more than 5 minutes After the temperature of the concrete is read, what is required? - Correct Answer Reporting of temperature The temperature of concrete is reported to the nearest _____ degrees F [_____ C] - Correct Answer 1 degree F [0.5 C] According to ASTM C1064, what is one reason to take the temperature of concrete? - Correct Answer Verify conformance to a specified requirement for temperature of concrete A maximum temperature of freshly mixed concrete is specified in ASTM C1064. True of False? - Correct Answer False The sample of