What type of inspection ensures the height of the Hi-Lok pin protrusion after installation?

The correct answer is Go/NoGo gauge inspection because this type of inspection provides a simple yet effective method for measuring the protrusion of Hi-Lok pins after installation. A Go/NoGo gauge is specifically designed to evaluate whether a component meets certain dimensional criteria. In the case of the Hi-Lok pin, the Go section of the gauge would indicate an acceptable range of protrusion, while the NoGo section would signify that the protrusion is either too short or too long, thus failing the inspection. This helps to ensure that the pin has been installed correctly and meets engineering specifications for safety and performance.

In contrast to the other types of inspection, a visual inspection may not be precise enough to determine exact protrusion measurements and can sometimes overlook subtle deviations. Functional testing assesses the operational capabilities of a component rather than its physical dimensions. Torque testing, while important for ensuring that fasteners are tightened to the correct specifications, does not measure protrusion specifically. Therefore, for the purpose of confirming the height of Hi-Lok pin protrusion, Go/NoGo gauge inspection is the most reliable and accurate method.