Visual Testing (VT) Practice Exam

Fiberoptic bore scopes rely on a specific type of lighting to effectively illuminate the areas being inspected. This lighting is crucial because these instruments are used in environments that may not have natural light or access to sufficient ambient lighting, such as inside machinery, engines, or tight spaces. The light provided by the fiber optics is often artificial and specifically designed to be bright and focused enough to reveal details that would otherwise be hidden in shadowed or dark environments. Using artificial light ensures that the operator can see clearly, enhancing the visibility of any features or flaws in the inspected surface. Therefore, it is essential to have an adequate, often artificial, lighting setup for optimal operation of fiberoptic bore scopes. This type of illumination allows for detailed observation and accurate assessments during inspections.