31.
Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is

32.
In compression, a prism of brittle material will break

33.
Hardness of lower bainite (tempered martensite) is about

34.
The compressive strength of cast iron is __________that of its tensile strength.

35.
Chromium when added to steel _________ the tensile strength.

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