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Engineering Materials

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

Chromium
Nickel
Copper
Magnesium

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Engineering Materials
Which of the following represents the allotropic forms of iron?

Alpha iron and beta iron
Alpha iron, beta iron and gamma iron
Alpha iron, gamma from and delta iron
Body centered cubic iron and face centered cubic iron

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Engineering Materials
Which of the following steel making process is being adopted at Rourkela (in India) Steel Plant?

Electric process
Open hearth process
LD process
Bessemer process

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Engineering Materials
Cast iron is manufactured in

Blast furnace
Bessemer converter
Open hearth furnace
Cupola

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Engineering Materials
Ductility of a material can be defined as

Ability to undergo large permanent deformations in compression
Ability to undergo large permanent deformations in tension
Ability to recover its original form
All of these

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Engineering Materials
In nodular iron, graphite is in the form of

Spheroids
Free carbon
Cementite
Flakes

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