![True centrifugal casting process in horizontal configuration is to be used for casting a metallic cylinder with outside diameter 0.275 m and inside diameter 0.250 m](https://www.gkseries.com/blog/wp-content/uploads/2023/09/True-centrifugal-casting-process-in-horizontal-configuration-is-to-be-used-for-casting-a-metallic-cylinder-with-outside-diameter-0.275-m-and-inside-diameter-0.250-m.jpg)
Q. True centrifugal casting process in horizontal configuration is to be used for casting a metallic cylinder with outside diameter 0.275 m and inside diameter 0.250 m. If G-factor (ratio of centrifugal force experienced by the rotating cast metal to its weight) is 65 and acceleration due to gravity is 9.8 m/s2, the minimum rotational speed (in rpm) required is closest to
Ans: 650
Sol:
In true centrifugal casting process, the G-factor (GF) is defined as the ratio of centrifugal force experienced by the rotating cast metal to its weight.
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Screenshot-835.png)