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Engineering Materials

Engineering Materials
According to Indian standard specifications, plain carbon steel designated by 40 C8 means that the carbon content is

0.0004
0.35 to 0.45%
0.6 to 0.8%
0.4 to 0.6%

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Engineering Materials
Nickel when added to copper improves

Hardness
Hardness and strength
Strength and ductility
Machinability

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Engineering Materials
Cartridge brass can be

Drawn into wires
Any one of these
Cold rolled into sheets
Formed into tube

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Engineering Materials
Acidic solution is one which has pH value

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

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Engineering Materials
Which is false statement about properties of aluminium?

Fatigue strength is not high
Creep strength limits its use to fairly low temperatures
Wear resistance is very good
Modulus of elasticity is fairly low

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Engineering Materials
There are fourteen atoms in a unit cell of

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

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