Question 6 QMED05 - Machinist-Pump Technician

The Correct Answer is B **Why the cape chisel (B) is correct:** The cape chisel is specifically designed for cutting grooves, slots, and keyways. It has a narrow, straight cutting edge that is slightly wider at the cutting edge than at the shank, which helps prevent jamming while cutting deep slots. This shape allows it to remove metal precisely along a designated line, making it the ideal tool for creating a keyway. **Why the other options are incorrect:** * **A) flat cold chisel:** A flat cold chisel is used for general-purpose cutting, shearing, and chipping off large flat surfaces or removing rivets. Its wide cutting edge makes it unsuitable for the precise, narrow work required for cutting a keyway. * **C) round nose chisel:** A round nose chisel (or half-round chisel) is designed for cutting concave grooves, circular grooves, and cleaning up fillets or corners. It would create a curved bottom, which is not suitable for the straight sides and flat bottom of a standard keyway. * **D) diamond point chisel:** A diamond point chisel has a point that is ground to an angle (usually 60 or 90 degrees) and is primarily used for squaring up corners or trimming V-grooves. It is not designed for cutting long, straight slots like a keyway.