Depth of hardness of steel is increased by addition of_________________?

Related Mcqs:

Points of arrest for iron correspond to__________________?

A. stages at which allotropic forms change B. stages at which further heating does not increase temperature for some time C. stages at which properties do not change with increase in temperature D. there is nothing like points of arrest E. none of the above...

Hardness of lower bainite (tempered martensite) is about________________?

A. RC 65 B. RC 48 C. RC 57 D. RC 80 E. RC 32...

Brass (alloy of copper and zinc) is an example of__________________?

A. substitutional solid solution B. interstitial solid solution C. intermetallic compounds D. all of the above E. none of the above...

In compression, a prism of brittle material will break________________?

A. by forming a bulge (l>) by shearing along oblique plane B. in direction perpendicular to application of load C. by crushing into thousands of pieces D. none of the above...

Structural steel contains following principal alloying elements__________________?

A. nickel, chromium and manganese B. tungsten, molybdenum and phosphorous C. lead, tin, aluminium D. zinc, sulphur, and chromium E. none of the above...