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Engineering Materials

Engineering Materials
The blade of a power saw is made of

Malleable cast iron
Boron steel
High speed steel
Stainless steel

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Engineering Materials
Process of Austempering results in

Carburised structure
Martenistic structure
Formation of bainite structure
Lamellar layers of carbide distributed throughout the structure

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Engineering Materials
Nodular cast iron is produced by adding ________ to the molten cast iron.

Chromium
Copper
Magnesium
Nickel

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Engineering Materials
The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is

Nickel
Vanadium
Cobalt
Chromium

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Engineering Materials
Following elements have face-centered cubic structure

A iron (below 910°C and between 1400 to 1539°C), W
All of these
Mg, Zn, Ti, Zr, Br, Cd
Gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt

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Engineering Materials
Iron ore is usually found in the form of

Oxides
Carbonates
All of these
Sulphides

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