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Engineering Materials

Engineering Materials
In malleable iron, carbon is present in the form of

Nodular aggregates of graphite
Flakes
Free carbon
Cementite

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Engineering Materials
Following elements have face-centered cubic structure

Mg, Zn, Ti, Zr, Br, Cd
All of these
A iron (below 910°C and between 1400 to 1539°C), W
Gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt

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Engineering Materials
Basic solution is one which has pH value

Greater than 7
Equal to 7
Less than 7
pH value has nothing to do with basic solution

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Engineering Materials
The lower critical point for all steels is

723°C
913°C
600°C
700°C

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Engineering Materials
The ratio of the volume occupied by the atoms to the total volume of the unit cell is called

Space lattice
None of these
Coordination number
Atomic packing factor

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Engineering Materials
A cold chisel is made of

Mild steel
High carbon
Cast iron
H.S.S.

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