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Engineering Materials

Engineering Materials
Manganese in steel increases its

Hardness
Tensile strength
Ductility
Fluidity

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Engineering Materials
The alloying element which can replace tungsten in high speed steels is

Nickel
Molybdenum
Cobalt
Vanadium

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Engineering Materials
Which is the false statement about wrought iron? It has

Ability of hold protective coating
Uniform strength in all directions
High ductility
High resistance to rusting and corrosion

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Engineering Materials
The ability of a material to resist softening at high temperature is known as

Fatigue
Hot hardness
Creep
Hot tempering

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Engineering Materials
The surface hardness of the following order is achieved by nitriding operation

1000 to 1100 VPN
1500 VPN
600 VPN
250 VPN

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Engineering Materials
Bronze is an alloy of

Copper and zinc
Copper and tin
None of these
Copper, tin and zinc

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