Valero BOT Instrumentation Practice Exam - Study Guide & Prep

The tape and float type is used with guide wires inside a vessel due to its design and functionality that allow it to operate effectively in that context. It usually consists of a float connected to a tape which moves up and down according to the liquid level within the vessel. The guide wires help maintain the float's position and ensure smooth movement along the vertical path, minimizing the risk of potential obstructions and ensuring reliable level measurement inside the vessel.

This configuration is especially useful in applications where accurate level measurement is needed and the environment may be challenging for other types of floats. By using a tape and float mechanism with guide wires, the system can provide precise and steady readings, even in turbulent or changing conditions.