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Mechanical Engineering Objective Questions { Material science }



372. Which of the following metals can be easily drawn into wire
A.Tin
B.Copper
C.Lead
D.Zinc
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373. Following element is added to molten cast iron to obtain nodular cast iron
A.Cr
B.Mg
C.Cu
D.Mo
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374. Silicon when added to copper increases its
A.Machinability
B.Brittleness
C.Electrical conductivity
D.Hardness and strength
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375. Which of the following is an amorphous material
A.Mica
B.Lead
C.Rubber
D.Glass
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