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Engineering Materials

Engineering Materials
In mottled cast iron, carbon is available in

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

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Engineering Materials
There are fourteen atoms in a unit cell of

None of these
Body centered cubic space lattice
Face centered cubic space lattice
Close packed hexagonal space lattice

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Engineering Materials
Maximum percentage of carbon in austenite is

0.0026
0.017
0.008
0.00025

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Engineering Materials
The alloying element which reduces the formation of iron sulphide in steel is

Vanadium
Manganese
Chromium
Nickel

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

Induction hardening
Cyaniding
Nitriding
Electroplating

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Engineering Materials
The defect which takes place due to imperfect packing of atoms during crystallization is known as

Line defect
None of these
Surface defect
Point defect

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