Millwright Level 1 Practice Exam 2025 - Free Millwright Practice Questions and Study Guide

V-blocks can indeed be used on a milling machine, and this practice is beneficial for specific tasks that require the secure holding of cylindrical or irregularly shaped workpieces. The V-shaped groove of the block provides a stable and precise way to clamp these components, allowing for accurate machining and reducing the risk of movement during the milling process.

Using V-blocks helps to create a point of contact that centers the circular or irregular part, making it easier to mill flat surfaces, cut keyways, or perform any operation where a stable setup is crucial. This versatility allows machinists to handle various shapes, improving the overall efficiency and safety of machining operations while ensuring that the parts are held securely at the right angles.

The other choices suggest limitations or conditions that are not necessary when using V-blocks on milling machines, as they can be effectively utilized in a variety of situations without modifications or specific operations only.