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Engineering Materials

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

Chromium
Nickel
Magnesium
Copper

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Engineering Materials
Which is false statement about case hardening? Case hardening is done by

Nitriding
Induction hardening
Cyaniding
Electroplating

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Engineering Materials
The property of a material due to which it breaks with little permanent distortion, is called

Plasticity
Malleability
Brittleness
Ductility

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Engineering Materials
Isotropic materials are those which have the same

Elastic properties in all directions
Thermal properties in all directions
Electric and magnetic properties in all directions
Stresses induced in all directions

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Engineering Materials
Admiralty gun metal contains

Iron scrap and zinc
63 to 67% nickel and 30% copper
Alloy of tin, lead and cadmium
88% copper, 10% tin and rest zinc

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Engineering Materials
The property of a material which enables it to retain the deformation permanently, is called

Brittleness
Plasticity
Ductility
Malleability

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