ACI Concrete Field Testing Technician - Grade I Practice Exam

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Prepare for the ACI Concrete Field Testing Technician - Grade I Exam with interactive quizzes and detailed study materials. Each question is designed to enhance your understanding of concrete testing standards and procedures.

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Which of the following describes the procedure for handling the temperature measuring device after placement?

It should be left alone
It should be jiggled to ensure contact
Gently pressed at the surface
Immediately removed for readings

The correct answer is: Gently pressed at the surface

After placing the temperature measuring device in the concrete, it is crucial to ensure that it makes adequate contact with the concrete surface to obtain an accurate reading. Gently pressing the device at the surface helps establish this contact, allowing the sensor to effectively measure the temperature of the concrete. Accurate temperature readings are essential for assessing the curing conditions and overall quality of the concrete. Leaving the device alone would not provide an accurate representation of the concrete's temperature since it may not be properly seated. Jiggling the device could risk damaging the sensor or compromising the readout, while immediately removing the device would prevent gathering accurate temperature data, leading to unreliable results. Therefore, gently pressing the device ensures it is correctly positioned for an accurate temperature measurement.