WELDABILITY OF STEEL - Practice Mode

1) What is the grade of hacksaw blades with pitch 0.8mm?

Fine Medium Course Rough

Correct Answer: Fine

2) What does the letter ?X? indicate in the electrode classification of EB5426 H1 J X?

Covered electrode Increase metal recovery Hydrogen controlled electrode Radio graphic quality electrode

Correct Answer: Radio graphic quality electrode

3) What is the percentage of carbon in medium carbon steel?

0.05% to 0.30% 0.05% to 0.8% 0.30% to 0.6% 0.6% to 1.2%

Correct Answer: 0.30% to 0.6%

4) What is the defect of metal flowing into the surface of base metal without fusing it?

Over lap Under cut Lack of fusion Lack of penetration

Correct Answer: Over lap

5) Which one of the defect is caused by low current in arc welding?

Poracity Under cut Lack of fusion Excessive penetration

Correct Answer: Lack of fusion

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