The radial depth of cut to be employed should be equal to

Question

For the manufacture of full depth spur gear by hobbing process, the number of teeth to be cut = 30, module = 3 mm and pressure angle = 20⁰. The radial depth of cut to be employed should be equal to

                                                         

(a) 3.75 mm                    (b) 4.50 mm

(c) 6.00 mm                    (d) 6.75 mm