Everyday Science Mcqs

Q.  Which of the following are the ingredients of gun metal?

a. Iron, Zinc and Titanium
b. Iron and Tin
c. Iron, Brass and Tin
d. Copper, Tin and Zinc


ANSWER: See Answer
 
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.
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