![The end product obtained using spinning process is shown in the figure. The initial blank thickness is 2.5 mm](https://www.gkseries.com/blog/wp-content/uploads/2023/09/The-end-product-obtained-using-spinning-process-is-shown-in-the-figure.-The-initial-blank-thickness-is-2.5-mm.jpg)
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
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Screenshot-806-1.png)
(A) 75 | (B) 105 | (C) 150 | (D) 210 |
Ans: 210
Sol:
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Screenshot-809.png)
Hypotenuse = 45 × 2 = 90 mm
D = (2 × Hypotenuse) + 30 mm
D = (2 × 90) + 30 = 210 mm.