Gun metal contains__________________?

Related Mcqs:

Chilled cast iron has____________________?

A. no graphite B. a very high percentage of graphite C. a low percentage of graphite D. graphite as its basic constituent of composition E. none of the above is true...

Process of austempering results in__________________?

A. formation of bainite structure B. carburised structure C. martenistic structure D. lamellar layers of carbide distributed throughout the structure E. relieving of stresses throughout a component...

The most effective inhibitor of grain growth, when added in small quantities is__________________?

A. carbon B. vanadium C. manganese D. cobalt E. copper...

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 copper 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...