Mechanical Engineering :: Engineering Materials
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The iron ore mostly used for the production of pig iron is
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A carbon steel having Brinell hardness number 100 should have ultimate tensile strength closer to
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The steel widely used for making precision measuring instruments is
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The ductility is the property of a material due to which it
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The essential constituent of a hardened steel is
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The cutting tools are made from
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In a close packed hexagonal space lattice, there are
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A.
nine atoms out of which eight atoms are located at the corners of the cube and one atom at its centre
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B.
twelve atoms, all of which are located at the twelve corners of a hexagonal prism
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C.
fourteen atoms out of which eight atoms are located at the coners of the cube and six atoms at the centres of six faces
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D.
none of the above
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