Match List-I (welding problems) with List-II (Causes) and

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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:

1. A B C D
  2 1 5 3
2. A B C D
  3 4 2 1
3. A B C D
  2 4 5 3
4. A B C D
  3 1 4 2

Correct Option: D

A – 2 B – 1 C – 5 D – 3