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.
36. Shock resisting steels should have
37. White metal contains
38. Which of the following has a fine gold colour and is used for imitation jewellery?
39. Large forgings, crank shafts, axles normally contain carbon up to
40. Cemented carbide tools are not found to be suitable for cutting
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