Intro to Millwright Practice Exam 2025 - Free Millwright Skills Practice Questions and Study Guide

The feature that helps prevent the workpiece from being pulled into the wheel housing on a bench grinder is the steady rest. A steady rest provides support to the workpiece, helping to keep it stable during the grinding process. This is particularly important because it minimizes any lateral movement that could cause the workpiece to be inadvertently drawn into the grinding wheel, which could lead to accidents or damage to the workpiece.

The steady rest effectively helps in maintaining control over the workpiece, allowing the operator to grind safely and efficiently. Proper use of a steady rest also enhances precision by ensuring that the workpiece remains in the desired position relative to the grinding wheel, thereby reducing the risk of unwanted contact with the wheel housing.

While other features such as guards, tool rests, and clamping fixtures play important roles in safety and efficiency, they do not specifically address the issue of preventing the workpiece from being pulled into the wheel housing in the same way that a steady rest does. Guards primarily serve to protect the user from debris and possible injuries, tool rests provide a platform to support the workpiece while grinding, and clamping fixtures are used to secure materials but may not directly prevent movement during the grinding operation.