Which of the following are the ingredients of gun metal?
AIron, Zinc and Titanium
BCopper, Tin and Zinc
CIron and Tin
DIron, Brass and Tin
Correct answer
B. Copper, Tin and Zinc
Explanation
Modified gunmetal contains lead in addition to the zinc; it is typically composed of 86% copper, 9.5% tin, 2.5% lead, and 2% zinc. It is used for gears and bearings.