Question

 Match List I (Welding problems) with List II (Causes) and select the correct answer using the codes given below the Lists

List I                           

(A) Cracking of weld metal

(B) Cracking of base metal

(C) Porosity

(D) Inclusions

List II

1. Excessive stresses

2. High joint rigidity

3. Failure to remove slag from previous deposit

4. Oxidation

5. Excessive H2, O2, N2, in the welding atmosphere

Codes;

     A       B         C         D

(a) 2        1          5          3

(b) 3        4         2         1

(c)  2       4          5          3

(d) 3        1          4          2