61) Which indicates the amount of bond present between the individual abrasive grains and closeness of the individuals grains and closeness of the individuals grains to each other?

62) The percentage of carbon in mild steel is

63) The superfinishing process carried out using abrasive sticks for the removal of stock from metallic and non metallic surface is

64) This type of bearing is used where the outside diameter of the bearing is reversly restricted because of the limited bearing space in housing?

65) A process to make a permanent joint by joining two similar or dissimilar metals using any non-ferrous metal as the filler metal having a melting point below that of the base metal but higher than 450 degree celsius is called