Engineering Materials
The material in which the atoms are arranged regularly in some directions but not in others, is called

None of these
Crystalline material
Mesomorphous material
Amorphous material

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Amorphous material is one

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

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Ductile cast iron

Is produced by small additions of magnesium (or creium) in the ladle. Graphite is in nodular or spheroidal form and is well dispersed throughout the material
Is also known as chilled cast iron and is obtained by cooling rapidly. It is almost unmachinable
Contains 1.7 to 3.5% carbon in Free State and is obtained by the slow cooling of molten cast iron
Is produced by annealing process. It is soft, tough and easily machined metal

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Engineering Materials