28) Which method is preferred for producing small length taper with least accuracy?

29) Calculate the amount of off-set if total length of job = 80 mm and tan = 5 Degree 45 minutes?

30) Calculate the least count of V.B.P if 23 div on main scale is divided into 12 scale divisions

31) What should be the heights of gauge block to be built to check the work angle of 30 Degree using 150 mm sine bar?