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Engineering Materials

Engineering Materials
High carbon steel carries carbon percentage

0.3 to 0.6%
0.6 to 0.8%
0.8 to 1.5%
0.1 to 0.3%

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Engineering Materials
Which of the following impurity in cast iron promotes graphite nodule formation and increases the fluidity of the molten metal?

Silicon
Sulphur
Manganese
Phosphorus

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Engineering Materials
Which of the following pipes is least corrosion resistant?

Wrought iron
Cast iron
Mild steel
Brass

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Engineering Materials
The stiffness is the ability of a material to resist

Fracture due to high impact loads
None of these
Deformation under stress
Externally applied forces with breakdown or yielding

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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

Coordination number
Space lattice
Atomic packing factor
None of these

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Engineering Materials
The machinability of aluminium increases when _________ is added to aluminium.

Copper
Silicon
Magnesium
Lead and bismuth

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