53) Guideways of lathe beds are hardened by which of the following methods ?

54) When the hourly wage rate is < 15 and standard time for a particular job is 8 hours, how much can a worker earn daily as per Bedaux plan, if he complete the job in 6 hours ?

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