Q. Powered glass test used for the standardization of which type of glass material: (Solved)
1. Type I, II & III
2. Type I, III, IV
3. Type II, III, IV
4. All of the above
- b. Type I, III, IV
1. Type I, II & III
2. Type I, III, IV
3. Type II, III, IV
4. All of the above