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Engineering Materials

Engineering Materials
An engineer's hammer is made of

Forged steel
Cast iron
High carbon steel
Mild steel

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Engineering Materials
Which of the following element results in presence of free graphite in C.I.?

Manganese
Silicon
Sulphur
Carbon

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Engineering Materials
Which of the following represents the allotropic forms of iron?

Alpha iron, beta iron and gamma iron
Alpha iron, gamma from and delta iron
Body centered cubic iron and face centered cubic iron
Alpha iron and beta iron

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Engineering Materials
Tungsten in high speed steel provides

Sharp cutting edge
Toughness
Hot hardness
Wear resistance

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Engineering Materials
In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion.

Silicon
Sulphur
Manganese
Phosphorus

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Engineering Materials
Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is

Hastelloy
Silver metal
Duralumin
Invar

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