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Engineering Materials

Engineering Materials
The steel widely used for motor car crankshafts is

Nickel-chrome steel
Silicon steel
Chrome steel
Nickel steel

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Engineering Materials
Which is the false statement about wrought iron? It has

High resistance to rusting and corrosion
High ductility
Ability of hold protective coating
Uniform strength in all directions

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Engineering Materials
The heat treatment process used for softening hardened steel is

Carburising
Normalizing
Tempering
Annealing

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

Cast iron
Wrought iron
Mild steel
Brass

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Engineering Materials
By severely deforming a metal in a particular direction it becomes

Ductile
Malleable
Anisotropic
Homogeneous

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Engineering Materials
A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as

Precipitation
Heat treatment
Allotropic change
Recrystallization

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