7 mm

8.08 mm

8.16 mm

8.5 mm

Decreased clearance and rake angle

Increased clearance angle and decreased rake angle

Decreased clearance angle and increased rake angle

Increased clearance and rake angle

Length of taper

It is the ratio of difference in diameters of taper to its length

It is the ratio of large diameter of taper to small diameter

It is the ratio of tapered length to angle of taper

A only

B only

Both A and B

Neither A nor B

to remove internal stresses caused due to cold working processes

to remove nitrogen from the surface of steel

to produce hardened surface

to produce hard surface but soft core