Multiple Choice Question (MCQ)
Question: What is the composition of leaded gunmetal of copper, zinc and tin?
A.
Copper 90%, lead 5%, tin 5%
B.
Copper 94%, lead 4%, tin 2%
C.
Copper 88%, zinc 2%, tin 10%
D.
Copper 85%, lead 5%, zinc 5%, tin 5%
Correct Answer: Copper 85%, lead 5%, zinc 5%, tin 5%