When are gauges under constant supervision?

When are gauges under constant supervision?

• A. in use
• B. during maintenance
• C. during storage
• D. during calibration

Answer: (A)

Constant supervision during use is required because the gauge contains a radioactive source, and exposure risk exists whenever measurements are being taken. While the device is in operation, the operator must have immediate, direct control to ensure the source is properly shielded when not actively measuring, the gauge is oriented correctly, and any safety barriers remain in place. This close oversight helps prevent accidental exposure and ensures rapid response if something goes awry. In other situations—like maintenance, calibration, or storage—the source is secured and the device is kept under controlled procedures (shielded, locked, or otherwise contained). Those times do not involve active measurement, so continuous watching is not required.

Constant supervision during use is required because the gauge contains a radioactive source, and exposure risk exists whenever measurements are being taken. While the device is in operation, the operator must have immediate, direct control to ensure the source is properly shielded when not actively measuring, the gauge is oriented correctly, and any safety barriers remain in place. This close oversight helps prevent accidental exposure and ensures rapid response if something goes awry.

In other situations—like maintenance, calibration, or storage—the source is secured and the device is kept under controlled procedures (shielded, locked, or otherwise contained). Those times do not involve active measurement, so continuous watching is not required.