Millwright Level 1 Practice Exam

Which chisel is recommended for removing sharp edges or burrs on metal?

1. Flat chisel

2. Cross chisel

3. Round chisel

4. Diamond chisel

The correct answer is: Flat chisel

The flat chisel is particularly effective for removing sharp edges or burrs on metal due to its wide, flat blade. This design allows for better contact with the surface of the metal, making it easier to shave off the imperfections and create a smoother edge. When using a flat chisel, the operator can apply even pressure across a larger surface area, which is crucial for efficiently deburring without risking damage to the underlying material. In contrast, a cross chisel features a pointed edge that is more suitable for creating notches or cuts rather than smoothing surfaces. The round chisel is designed for rounding off edges and is less effective when it comes to removing sharp burrs since its shape does not lend itself well to flat surfaces. Finally, the diamond chisel, with its specialized angled blade, is typically used for more intricate work or for cutting shapes rather than for deburring tasks, making it less practical for this specific need. Therefore, the flat chisel stands out as the most effective choice for this purpose.