Question

  Match List – I (Material) with List – II (Applications) and select the correct answer using the codes given below the Lists:

         List – I                                      

A. Tungsten carbide

B. Silicon nitride

C. Aluminium  oxide

D. Silicon carbide

          List – II

1. Abrasive wheels

2. Heating elements

3. Pipes for conveying liquid metals

4. Drawing dies

Codes:

             A        B         C         D

(a) 3        4          1          2

(b) 4        3          2          1

(c) 3        4          2          1

(d) 4        3          1          2