engineering recuitment HPCL Junior Executive 2025 Mock Test Engineering Materials Science Heat Treatment Process
Match the items in List-I with the corresponding items in the List-II.
| List-I (Heat treatment) |
List-II (Effect on properties) |
||
| A. | Annealing | 1. | Grain refinement |
| B. | Nitriding | 2. | Improves hardness of the whole mass |
| C. | Martempering | 3. | Improves surface hardness |
| D. | Normalizing | 4. | Reduce ductility |
Choose the correct option from the following:
1
A - 3, B - 1, C - 4, D - 2
2
A - 1, B - 3, C - 2, D - 4
3
A - 3, B - 1, C - 2, D - 4
4
A - 1, B - 3, C - 4, D - 2