Addition of ______________ in steel is helpful in increasing the depth of hardness?

Related Mcqs:

High speed cutting tool steels contain about _______________ percent of tungsten?

A. 6-8 B. 18-20 C. 30-35 D. 50-55...

Combination of metals and ceramics are called___________________?

A. Metalloy B. Cermets C. Pellets D. Non-crystalline ceramics...

Monel metal is an alloy of__________________?

A. Molybdenum and nickel B. Nickel and copper C. Molybdenum and aluminium D. Molybdenum and zinc...

Cast iron has____________________?

A. High ductility B. High malleability C. Very high tensile strength D. Its elastic limit very close to ultimate breaking strength...

Which metal is protected by the layer of its own oxide ?

A. Iron B. Silver C. Calcium D. Aluminium...