Q133
Addition of manganese to aluminium results in
A.
Improvement of casting characteristics
B.
Improvement of corrosion resistance
AnswerC.
One of the best known age and precipitation hardening systems
D.
Improving machinability
Answer: Option B
Solution
Answer: Option B
Solution:
When manganese is added to aluminum, its strength is increased slightly through solution strengthening and its strain hardening is also improved