Basic Wastewater Operator Practice Exam

What is the first action an operator should take if an equipment failure warning light did not activate, but a failure was reported and repaired?

1. Inspect the system for damages

2. Check the unit with a volt meter

3. Check/replace the bulb in the indicator light

4. Call an electrician

The correct answer is: Check/replace the bulb in the indicator light

The correct course of action in this situation involves checking or replacing the bulb in the indicator light. This step is important because indicator lights are designed to provide visual feedback on the operational status of equipment. If a failure was reported and repaired but the warning light did not activate, it indicates a potential issue with the light itself rather than the equipment's operation. Checking or replacing the bulb directly addresses the possibility that the indicator light may not have been functioning properly due to a burned-out bulb. Ensuring that the warning systems are operational is vital for ongoing monitoring and safety, as operators depend on these lights for prompt alerts to potential issues. Other actions, such as inspecting the system for damages, checking the unit with a volt meter, or calling an electrician, may be necessary if the indicator bulb is confirmed functional but the warning light is still not operational. However, starting with the bulb allows for a quicker resolution and could potentially eliminate a straightforward problem without delving into more complex diagnostics.