40) What is the type of fit if minimum size of the shaft is larger than maximum size of hole?

41) What is the type of fit if minimum size of hole is larger than maximum size of shaft?

42) What is the name of the pattern of work surface caused by the movement of cutting tool?

43) Which of the following abrasive is preferred for lapping soft steels and non-ferrous metal?

44) Which is used to prevent concentration of abrasives on lapping surface?