55) Heating the metal powder to a temperature above its recrystallisation temperature but below its melting point is called

56) The process of tracing through records and all levels of product structure to identify the effect of change of records of one item is

57) More elongated dots with longer gaps between them in a chronocyle graph indicate

58) A shaper is operated at 120 cutting strokes/minute and is used to machine a workpiece with 250 mm length and 120 mm width. When the feed is 0°6 mm/stroke, depth of cut is 6 mm and approach distance is 25 mm, the total machining time is

59) Short time fatigue life testing is done by which of the following ?