Match List – I (Welding problems) with List – II (Causes) and select the correct answer using the codes given below the lists:
List – I (Welding problems)
A. Cracking of weld metal
B. Cracking of base metal
C. Porosity
D. Inclusions
List – II (Causes)
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
|