Florida DOT Concrete Batchman/Operator Practice Exam

How often should water meters or scales be checked after calibration prior to production?

1. Every month

2. Every 3 months

3. Every 6 months

4. Every year

The correct answer is: Every 3 months

The recommendation to check water meters or scales every three months after calibration prior to production is based on ensuring accuracy and maintaining the quality of the concrete mix. Regular checks at this interval help to identify any potential drift in the calibration that might occur due to wear, use, or environmental factors. This frequent assessment allows for timely corrections, ensuring that the materials are being measured accurately, which is crucial for adhering to specifications and maintaining the desired performance characteristics of the concrete. Calibration checks help minimize the risk of variations in the concrete mixture that could lead to structural issues or non-compliance with regulatory standards.