42) Pick the non-conventional machining method; it uses reverse metal plating process

43) Name the tool, which is used to lift or move heavy loads by leverage effect.

44) In a machine maintenance manual, regarding the frequency of lubricating the machine, square symbol represents

45) How many cubes of 4mm side can be cut from cube of side 8 mm?

46) A spherical aluminium ball is melted and made into smaller balls of 1/3 rd radius of original one. Then how many such balls can be made?