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Engineering Materials

Engineering Materials
Induction hardening is basically a

None of these
Core hardening process
Carburising process
Surface hardening process

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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
Beryllium bronze contains

80% copper and 20% beryllium
97.75% copper and 2.25% beryllium
60% copper and 40% beryllium
99% copper and 1% beryllium

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Engineering Materials
The heat treatment process used for softening hardened steel is

Normalizing
Annealing
Carburising
Tempering

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Engineering Materials
In mottled cast iron, carbon is available in

Nodular form
Partly in free and partly in combined state
Free form
Combined form

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Engineering Materials
The cupola is used to manufacture

Steel
Pig iron
Cast iron
Wrought iron

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