Minnesota Boiler License Practice Exam

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Study for the Minnesota Boiler License Exam. Deepen your knowledge with expertly designed flashcards and multiple choice questions, each complete with helpful hints and detailed explanations. Get prepared for your licensing success!

Practice this question and more.

When an electrode type of low water cut off does not work, what is the first step?

Increase the voltage.
Check the electrodes for bridging.
Replace the electrodes.
Replace the entire unit.

The correct answer is: Check the electrodes for bridging.

In the context of an electrode type low water cut off, if the device is not functioning properly, the first step should be to check the electrodes for bridging. Bridging occurs when mineral deposits or other obstructions accumulate between the electrodes, preventing them from accurately detecting water levels. This can lead to incorrect readings and potential safety issues, making it essential to verify the condition of the electrodes. If you find that there is bridging, it may be possible to clean the electrodes rather than replacing them or the entire unit, which can save time and resources. Taking this initial step allows technicians to troubleshoot effectively and ensure the boiler operates safely and efficiently. Other options involve either increasing voltage or replacing components, which are not advisable as initial troubleshooting steps, since the issue may be resolved just by addressing the state of the electrodes.