Paramagnetic alpha iron changes to gamma iron at_______________?

Related Mcqs:

Iron is ____________________?

A. paramagnetic B. ferromagnetic C. ferroelectric D. dielectric E. none of the above...

Amorphous material is one___________________?

A. in which atoms align themselves in a geometric pattern upon solidification B. in which there is no definite atomic structure and atoms exist in a random pattern just as in a liquid C. which is not attacked by phosphorous D. which emits fumes on melting E. none of the above...

The molecules in a solid move______________?

A. in a random manner B. in a haphazard way C. in circular motion D. back and forth like tiny pendulums E. do not move...

The tensile strength of wrought iron is maximum _________________?

A. along the lines of slag distribution B. perpendicular to lines of slag distribution C. uniform in all directions D. unpredictable E. none of the above...

Structural steel contains following principal alloying elements__________________?

A. nickel, chromium and manganese B. tungsten, molybdenum and phosphorous C. lead, tin, aluminium D. zinc, sulphur, and chromium E. none of the above...