Hardness of lower bainite (tempered martensite) is about________________?

Related Mcqs:

The unique property of cast iron is its high ___________________?

A. malleability B. ductility C. surface finish D. damping characteristics E. hardness...

Which is false statement about annealing. Annealing is done to________________?

A. relieve stresses B. harden steel slightly C. improve machining characteristic D. soften material E. permit further cold working...

Cast iron has_________________?

A. high tensile strength B. its elastic limit close to the ultimate breaking strength C. high ductility D. all of the above E. none of the above...

Melting point of iron is__________________?

A. 1539°C B. 1601°C C. 1489°C D. 1712°C E. 1131°C...

A specimen of aluminium metal when observed under microscope shows __________________?

A. B.C.C. crystalline structure B. F.C.C. crystal structure C. H.C.P. structure D. a complex cubic structure E. orthorhombic crystalline structure...