Visual Testing (VT) Practice Exam

In a bore scope, how is the image brought to the eyepiece?

1. An objective lens

2. Relay lenses

3. An eyepiece lens

4. All of the above

The correct answer is: All of the above

In a bore scope, the image is brought to the eyepiece through a combination of various optical components, specifically the objective lens, relay lenses, and the eyepiece lens. The objective lens plays a critical role by focusing the initial light that enters the bore scope from the target area, creating a clear image. This image is then transmitted through relay lenses, which serve to further process and direct the light. These relay lenses can enhance the image quality and help maintain the focus over longer distances within the instrument. Finally, the eyepiece lens provides additional magnification and allows the viewer to see the processed image clearly. Each component in this optical pathway is essential, working together to ensure that the image captured is of high quality and visible to the user through the eyepiece. This holistic approach to image delivery in a bore scope underlines the importance of each lens involved, which is why the correct answer encompasses all the components listed.