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Engineering Materials

Engineering Materials
Nickel when added to copper improves

Hardness and strength
Hardness
Machinability
Strength and ductility

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Engineering Materials
There are fourteen atoms in a unit cell of

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

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Engineering Materials
When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite.

Less than
Equal to
None of these
More than

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Engineering Materials
Quenching is not necessary when hardening is done by

Flame hardening
Any one of these
Nitriding
Case hardening

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Engineering Materials
Acidic solution is one which has pH value

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

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Engineering Materials
An example of amorphous material is

Glass
Lead
Silver
Zinc

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