Addition of manganese to aluminium results in

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Manisha Agrawal

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📊 Engineering Materials

Q. Addition of manganese to aluminium results in

(A) improvement of casting characteristics
(B) improvement of corrosion resistance
(C) one of the best known age and precipitation-hardening systems
(D) improving machinability

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✅ Correct Answer: (B) improvement of corrosion resistance

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