tool material and taylor's exponent value

Question

Match List – I (Cutting tool material) with List – II (Typical value of tool life exponent ‘n’ in the Taylor’s equation V.    and select the correct answer.

 

                                    List – I                                                 List – II

             A.        Hass                                                                 1.0.18

             B.        Cast alloy                                                         2. 0.12

             C.        Ceramic                                                           3. 0.25

             D.        Sintered carbide                                              4. 0.5

 

Codes:

                        A         B         C         D

            (a)       1          2          3          4

            (b)       2          1          3          4

            (c)       2          1          4          3

            (d)       1          2          4          3