17 Other forming processes - 2

51. Simple dies perform: A. Multiple operations per stroke. B. A single operation per stroke. C. Only bending operations. D. Only deep drawing.

52. Compound dies can: A. Perform more than one operation per stroke. B. Only cut the outer perimeter. C. Only punch holes. D. Work only with thick plates.

53. Progressive dies form the part: A. In a single stroke. B. In several stages as the strip advances. C. Only after heating. D. Using hydraulic pressure.

54. Die cutting is economically viable because: A. Dies are cheap. B. It requires no alignment. C. It has high productivity and low labor cost. D. It uses no punches.

55. Stamping differs from deep drawing because: A. It modifies thickness more. B. It produces only small parts. C. Deformations are more superficial and thickness changes less. D. It uses no dies.

56. Stamping is widely used for: A. Bicycle frames. D. Car body panels. C. Forged crankshafts. B. Extruded profiles.

57. Punching presses typically have: A. A rotating die table. B. A robust C‑frame and hydraulic punch actuation. C. No need for alignment. D. Only manual operation.

58. Nibbling refers to: B. Cutting and forming without removing material. A. Overlapping punching operations to create longer cuts. C. Removing burrs. D. Heating the sheet before punching.

59. Lancing produces: A. Holes only. B. Louvers or features without removing material. C. Welded seams. D. Thickened edges.

60. Punch presses are ideal for short and medium series because: B. They require custom dies for each part. A. They are slower but very flexible with quick tool changes. C. They cannot rotate punch‑die sets. D. They only cut circular shapes.