Which one of the following processes would be appropriate to drill a hole with a square cross section, 6 mm (0.25 in) on a side and 25 mm (1 in) deep in a steel workpiece:
A)abrasive jet machining
B)chemical milling
C)EDM
D)laser beam machining
E)oxyfuel cutting
F)water jet cutting
G)wire EDM

Question

Quizplus · Accepted Answer

EDM (Electrical Discharge Machining) is the appropriate process for drilling a hole with a square cross-section in a steel workpiece because it can accurately create complex shapes in hard materials by using electrical discharges (sparks).

Which One of the Following Processes Would Be Appropriate to Drill