Hardness of steel depends on_________________?

Related Mcqs:

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 hardness of steel increases if it contains____________________?

A. austenite B. martensite C. pearlite D. cementite E. all of the above...

Nickel in steel___________________?

A. improves wear resistance, cutting ability and toughness B. refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant proper¬ties C. improves cutting ability and reduces hardenability D. gives ductility, toughness, tensile strength and anticorrosion properties E. none of the above...

Addition of manganese to aluminium results in__________________?

A. improvement of casting characteristics B. improvement of corrosion resistance C. one of the best known age and precipitation-hardening systems D. improving machinability E. none of the above...

Addition of lead and bismuth to aluminium results in_________________?

A. improvement of casting characteristics B. improvement of corrosion resistance C. one of the best known age and precipitation-hardening systems D. improving machinability E. none of the above...