PREPARE YOURSELF FOR A THREE-PART EXAM AWS CWI

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

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Q:- A brittle failure normally has the appearance of fracture surface with :

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  1. Rough and dull grey appearance
  2. Smooth fracture with beach mark
  3. A cup and cone shape
  4. None of the above is correc

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