Civil Engineering > QUESTIONS & ANSWERS > ACI Concrete Field Testing Technician- Grade I (All)

ACI Concrete Field Testing Technician- Grade I

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The sensor of the temperature measuring device shall be submerged a minimum of _____ in. [_____mm] into the freshly mixed concrete. 3 in. [75 mm] The temperature measuring device shall have a ca... pacity of measuring temperature of freshly mixed concrete to +- _____ degrees F [+- _____ C] throughout a range of _____. 1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C] 00:22 01:03 The temperature measuring device shall be calibrated _____, or whenever there is a question of _____. Annually, accuracy The temperature of concrete may be measured in a wheelbarrow. True or False? True The temperature of concrete may be measured in a wall form. True of False True A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine temperature. True of False? 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 temperature measuring device after the device is submerged in the fresh concrete. 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? At least 2 minutes but not more than 5 minutes [Show More]

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