28) Which method of grinding operation the work piece is rotated about its own axis between centres as it passes lengthwise across the face of a revolving grinding wheel?

29) Which method of grinding operation, straight or tapered holes is produced?

30) Which grinding process specially shaped wheels are used to grind gear teeth, threads, and splined shafts?

31) What type of surface is produced by external cylindrical grinding?

32) Calculate the spindle speed (RPM) if the diameter of the wheel is 300 mm (d) and the surface speed is 25 m / sec [V] ?