Question

  Match List I (Materials) with List II (Machining) and select the correct answer:

List I               

(A) Machining of conducting materials

(B) Ruby rod

(C) Electrolyte

(D) Abrasive slurry

List II

1. ECM                           2. EDM

3. USM                           4. LBM

Codes:

    A        B         C         D

(a) 4        2          1          3

(b) 4        2          3          1

(c) 2        4          3          1

(d)  2       4          1          3