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| Q. |
Age hardening is generally applicable to |
| A. | Alloys of aluminium, magnesium, nickel etc |
| B. | High alloy steels |
| C. | Cast iron |
| D. | Alloys of chromium, vanadium etc |
| E. | Medium carbon steels |
| Answer» A. Alloys of aluminium, magnesium, nickel etc | |
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