Pick up the wrong statement Nickel and chromium in steel help in _________________?

Related Mcqs:

Induction hardening is the process of_____________________?

A. hardening surface of workpiece to ob-tain hard and wear resistant surface B. heating and cooling rapidly C. increasing hardness throughout D. inducing hardness by continuous process E. hardening core...

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...

Delta iron occurs at temperature of_______________?

A. room temperature B. above melting point C. between 1400°C and 1539°C D. between 910°C and 1400°C E. none of the above...

Nodular iron has____________________?

A. high maehinability B. low melting point C. high tensile strength D. good fluidity E. all of the above...

Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio _____________________?

A. 50 : 20 : 20 : 10 B. 40 : 30 : 20 : 10 C. 50 : 20 : 10 : 20 D. 30 : 20 : 30 : 20 E. 50 : 10 : 20 : 20...