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Engineering Materials

Engineering Materials
Quenching is not necessary when hardening is done by

Flame hardening
Case hardening
Any one of these
Nitriding

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Engineering Materials
In full annealing, the hypo eutectoid steel is heated from 30°C to 50°C above the upper critical temperature and then cooled

In still air
Slowly in the furnace
Suddenly in a suitable cooling medium
Any one of these

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Engineering Materials
Cast iron is characterized by minimum of following percentage of carbon

0.008
0.02
0.002
0.013

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Engineering Materials
Cemented carbide tools are not found to be suitable for cutting

Cast iron
Brass
Steel
Aluminium

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Engineering Materials
The property of a material which enables it to retain the deformation permanently, is called

Brittleness
Plasticity
Malleability
Ductility

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

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

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