The end product obtained using spinning process is shown in the figure. The initial blank thickness is 2.5 mm

Q. The end product obtained using spinning process is shown in the figure. The initial blank thickness is 2.5 mm. The blank diameter (in mm) is

(A) 75

(B) 105

(C) 150

(D) 210

Ans: 210

Sol:

Hypotenuse = 45 × 2 = 90 mm

D = (2 × Hypotenuse) + 30 mm

D = (2 × 90) + 30 = 210 mm.