Saved Bookmarks
| 1. |
Which of the below given formulas is used to calculate hardness coefficient?(a) (Final hardness / initial hardness) × 100%(b) 20 – (loss in weight / 2)(c) 20 – (loss in weight / 3)(d) ((20 – loss in weight) / 3) × 100% |
|
Answer» The correct choice is (c) 20 – (loss in weight / 3) The best explanation: The coefficient of hardness is expressed as a number and not a percentage. |
|