Engineering Materials
Isotropic materials are those which have the same

Electric and magnetic properties in all directions
Thermal properties in all directions
Stresses induced in all directions
Elastic properties in all directions

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Engineering Materials
In spheroidising process, the steel is

Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C
Heated up to the lower critical temperature and then cooled in still air
None of these
Heated below the lower critical temperature and then cooled slowly

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Engineering Materials
Amorphous material is one

In which atoms align themselves in a geometric pattern upon solidification
Which is not attacked by phosphorous
Which emits fumes on melting
In which there is no definite atomic structure and atoms exist in a random pattern just as in a liquid

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