NIMS Level I Practice Test 2026: Job Planning, Benchwork, and Layout

The purpose of layout fluid in machining is to enhance visibility of scribed lines and edges. This type of fluid is typically applied to the surface of a workpiece before any layout or marking activities are performed. By using layout fluid, machinists can clearly see and mark critical dimensions and features, ensuring accuracy in machining processes. The contrast it provides helps to prevent mistakes during measurement and cutting, ultimately aiding in achieving precise and high-quality results.

While lubricating cutting tools, cooling the workpiece, and bonding materials during assembly are important aspects of machining and manufacturing, they are not the roles that layout fluid is intended to fulfill. Layout fluid is specifically designed to improve visibility, which is crucial for accurate layout work before actual material removal occurs.