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Engineering Materials

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

Fatigue
Hot tempering
Creep
Hot hardness

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Engineering Materials
The alloy used for making electrical resistances and heating elements is

Nichrome
Magnin
Elinvar
Invar

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Engineering Materials
Cast iron is manufactured in

Bessemer converter
Blast furnace
Cupola
Open hearth furnace

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Engineering Materials
The machinability of steel is improved by adding

Sulphur, lead and phosphorus
Nickel
Chromium
Nickel and chromium

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

Magnesium
Chromium
Copper
Nickel

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Engineering Materials
The stiffness is the ability of a material to resist

Externally applied forces with breakdown or yielding
Fracture due to high impact loads
None of these
Deformation under stress

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