Gauges not accurate to within ______ percent of the scale shall be recalibrated or replaced.

Gauges not accurate to within ______ percent of the scale shall be recalibrated or replaced.

• A. 1 percent
• B. 3 percent
• C. 5 percent
• D. 10 percent

Answer: (B)

Gauges used to monitor storage levels must stay within a tight tolerance of the true level. If a gauge’s indication is off by more than three percent of the full-scale reading, it should be recalibrated or replaced. This three-percent limit provides a practical balance between maintaining accurate inventory control and the cost and effort of maintenance on field instruments. A tighter tolerance, like one percent, would be overly demanding for typical gauges; a looser tolerance, such as five or ten percent, would allow larger errors that could lead to incorrect inventory records and potential safety or operational issues.

Gauges used to monitor storage levels must stay within a tight tolerance of the true level. If a gauge’s indication is off by more than three percent of the full-scale reading, it should be recalibrated or replaced. This three-percent limit provides a practical balance between maintaining accurate inventory control and the cost and effort of maintenance on field instruments. A tighter tolerance, like one percent, would be overly demanding for typical gauges; a looser tolerance, such as five or ten percent, would allow larger errors that could lead to incorrect inventory records and potential safety or operational issues.