Q. For which of the following gear material the noise level is relatively low? (Solved)
1. Non-ferrous materials
2. Grade cast iron
3. Non-matallic material
4. Porous materials
5. Alloy steels
- c. Non-matallic material
1. Non-ferrous materials
2. Grade cast iron
3. Non-matallic material
4. Porous materials
5. Alloy steels