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Engineering Materials

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

Sulphur
Manganese
Silicon
Phosphorus

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Engineering Materials
Dislocations in materials refer to the following type of defect

Volumetric defect
Plane defect
Point defect
Line defect

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Engineering Materials
The ratio of the volume occupied by the atoms to the total volume of the unit cell is called

Atomic packing factor
Space lattice
None of these
Coordination number

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Engineering Materials
Process of Austempering results in

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

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Engineering Materials
Which of the following metal shrinks most from molten state to solid state?

Admiralty metal
Cast steel
Brass
Cast iron

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

1000 to 1100 VPN
1500 VPN
250 VPN
600 VPN

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