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Engineering Materials

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

Hot tempering
Hot hardness
Creep
Fatigue

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Engineering Materials
Nickel when added to copper improves

Strength and ductility
Machinability
Hardness and strength
Hardness

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Engineering Materials
Process of Austempering results in

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

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Engineering Materials
The hardness of steel primarily depends on

Percentage of alloying elements
Percentage of carbon
Heat treatment employed
Shape of carbides and their distribution in iron

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Engineering Materials
The compressive strength of cast iron is __________that of its tensile strength.

None of these
Less than
More than
Equal to

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

Malleability
Brittleness
Plasticity
Ductility

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