237) Structural steel contains following principal alloying elements
Answer is:
nickel, chromium and manganese
Related Engineering Materials MCQ with Answers
Answer is:
60 : 40
Explanation:
Muntz metal is also called as Yellow Metal, Muntz Metal consists of 60 percent copper and 40 percent zinc. Muntz metal is named after the English businessman George F. Muntz, who patented it in 1832. Muntz metal must be worked hot. Muntz metal is used to make machine parts that require resistance to corrosion.
Answer is:
85-92% copper and rest tin with little lead and nickel
Explanation:
Gun metal contains 85 - 92% copper and rest tin with little lead and nickel.