cwi exam

Q:- Why is the arc shielded. When using an arc welding process?

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A. To eliminate the colling from the arc
B. To retarded cooling rate of solidify metal
C. To excluded the atmosphere from the arc region
D. The arc not always shielded when using an arc welding process


Q:- For welder qualification, the specimens shall be prepared for tensile-strength, nick-break, and bend tests. When tensile-strength tests are omitted:

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1. The welder is not qualified
2. The weld must be redone
3. The is not covered in API 1104
4. Tensile-Strength specimens shall be subject to the nick-break test
5. Extra face bends must be tested