ASME Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is the function of a Tell-Tale hole in a stay bolt?

To allow for pressure measurement

To provide a path for drainage

To enable visual inspection of integrity

The function of a Tell-Tale hole in a stay bolt is primarily to enable visual inspection of the integrity of the stay bolt and the surrounding structure. This hole serves as an indicator for potential issues such as water leakage or failure within the component. When there is a breach or a crack in the stay bolt or if any fluid is escaping, it will typically leak through the Tell-Tale hole. This provides a clear and immediate visual cue for operators and maintenance personnel, allowing them to address any problems before they escalate into more serious failures.

This role is crucial in maintaining the overall safety and reliability of the equipment, particularly in high-stress environments like boilers. Operators can visually monitor the condition of the stay bolt and take appropriate actions based on what they observe through this hole.

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To connect to a safety device

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